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1

Correlation of black oil properties at pressures below the bubble-point  

E-Print Network [OSTI]

correlations: Bubble-point pressure, Pb *Solution gas-oil-ratio at pressures below the bubble-point, Rs Oil formation volume factor at pressures below the bubble-point, B0 In this work we provide a detailed analysis of the most popular correlations...

Velarde, Jorge Javier

2012-06-07T23:59:59.000Z

2

Dirac point and transconductance of top-gated graphene field-effect transistors operating at elevated temperature  

SciTech Connect (OSTI)

Top-gated graphene field-effect transistors (GFETs) have been fabricated using bilayer epitaxial graphene grown on the Si-face of 4H-SiC substrates by thermal decomposition of silicon carbide in high vacuum. Graphene films were characterized by Raman spectroscopy, Atomic Force Microscopy, Scanning Tunnelling Microscopy, and Hall measurements to estimate graphene thickness, morphology, and charge transport properties. A 27?nm thick Al{sub 2}O{sub 3} gate dielectric was grown by atomic layer deposition with an e-beam evaporated Al seed layer. Electrical characterization of the GFETs has been performed at operating temperatures up to 100?C limited by deterioration of the gate dielectric performance at higher temperatures. Devices displayed stable operation with the gate oxide dielectric strength exceeding 4.5 MV/cm at 100?C. Significant shifting of the charge neutrality point and an increase of the peak transconductance were observed in the GFETs as the operating temperature was elevated from room temperature to 100?C.

Hopf, T.; Vassilevski, K. V., E-mail: k.vasilevskiy@ncl.ac.uk; Escobedo-Cousin, E.; King, P. J.; Wright, N. G.; O'Neill, A. G.; Horsfall, A. B.; Goss, J. P. [School of Electrical and Electronic Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU (United Kingdom); Wells, G. H.; Hunt, M. R. C. [Department of Physics, Durham University, Durham DH1 3LE (United Kingdom)

2014-10-21T23:59:59.000Z

3

Flow near the critical point: Examination of some pressure-enthalpy paths  

SciTech Connect (OSTI)

Quantitative flow modeling of fluids at elevated temperatures and pressures has generally been limited to consideration of either single-phase flow or two-phase flow at conditions below the critical point of water. In this paper, we introduce a version of the GEOTHER model that can simulate both multiphase flow and flow above the critical point, and demonstrate its capabilities by simulating flow in the vicinity of the critical point. GEOTHER2 is a multiphase, finite-difference model that simulates three-dimensional flow of pure water and heat at temperatures ranging from 0{degree} to 1,200{degree}C and pressures ranging from 0.5 to 10,000 bars. The governing equations are expressions of mass and energy conservation that are posed in terms of pressure and enthalpy. A series of one-dimensional experiments indicates that permeability is a pivotal factor in determining pressure-enthalpy/temperature trajectories near the critical point. At low permeabilities (<10{sup -18} m{sup 2}), heat transport by conduction dominates, and the trajectoq defines a constant thermal gradient. At higher permeabilities (>10{sup -16} m{sup 2}), advective heat transport dominates, and the pressure-enthalpy trajectory maintains a constant "flowing enthalpy".

Hayba, Daniel O.; Ingebritsen, Steven E.

1994-01-20T23:59:59.000Z

4

High-Pressure Micellar Solutions of Polystyrene-block-Polybutadiene and Polystyrene-block-Polyisoprene Solutions in Propane Exhibit Cloud-Pressure Reduction and Distinct Micellization End Points  

SciTech Connect (OSTI)

Micellar solutions of polystyrene-block-polybutadiene and polystyrene-block-polyisoprene in propane are found to exhibit significantly lower cloud pressures than the corresponding hypothetical non-micellar solutions. Such a cloud-pressure reduction indicates the extent to which micelle formation enhances the apparent diblock solubility in near-critical and hence compressible propane. Pressure-temperature points beyond which no micelles can be formed, referred to as the micellization end points, are found to depend on the block type, size and ratio, and on the polymer concentration. For a given pressure, the micellization end-point temperature corresponds to the "critical micelle temperature." The cloud-pressure reduction and the micellization end point measured for styrene-diene diblocks in propane should be characteristic of all amphiphilic diblock copolymer solutions that form micelles in compressible solvents.

Winoto, Winoto [University of Wyoming, Laramie; Radosz, Maciej [University of Wyoming, Laramie; Tan, Sugata [University of Wyoming, Laramie; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL

2009-01-01T23:59:59.000Z

5

Experimental study of unsteady state filtration of gas condensate system at the pressure above the dew point  

SciTech Connect (OSTI)

The experimental study investigates the unsteady filtration of a gas condensate system at pressure above the dew point. It is assumed that the motion of a gas condensate mixture in a porous medium at a pressure 1.5--1.7 times higher than the dew point pressure does not comply with gas filtration rules. The results explain the process of forming microembryonics of the new phase, which can be used in project planning as well as during exploitation of gas condensate fields at reservoir pressure.

Babaev, R.D.; Suleymanov, A.A.; Shahiduzzaman, M. [Azerbaijan State Oil Academy, Baku (Azerbaijan). Dept. of Development and Production of Oil Fields

1997-04-01T23:59:59.000Z

6

A correlation for the coefficient of isothermal compressibility of black oil at pressures below the bubble point  

E-Print Network [OSTI]

A CORRELATION FOR THE COEFFICIENT OF ISOTHERMAL COMPRESSIBILITY OF BLACK OIL AT PRESSURES BELOW THE BUBBLE POINT A Thesis by ALEJANDRO J. VILLENA LAiVZI Submitted to the Graduate College of Texas AAM University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1985 Major Subject: Petroleum Engineerrng A CORRELATION FOR THE COEFFICIENT OF ISOTHERMAL COMPRESSIBILITY OF BLACK OIL AT PRESSURES BELOW THE BUBBLE POINT A Thesis by ALEJANDRO J. VILLENA LANZI...

Villena Lanzi, Alejandro J

1985-01-01T23:59:59.000Z

7

A Novel Procedure to Determine Optimal Air Static Pressure Set-points and Reset Schedules in VAV Air Handling Units  

E-Print Network [OSTI]

Air static pressure set-point or schedule for VAV AHLJ systems is one of the most crucial operational parameters for satisfy lug the building load, maintaining the room comfort level and saving energy costs. This paper presents a novel procedure...

Zhu, Y.; Liu, M.; Claridge, D. E.; Turner, W. D.; Powell, T.

1998-01-01T23:59:59.000Z

8

Estimation of point of zero charge for activated carbon treated with atmospheric pressure non-thermal oxygen plasmas  

Science Journals Connector (OSTI)

Commercial activated carbon was treated with a non-thermal oxygen plasma under atmospheric pressure using three types of reactors: a dielectric barrier discharge (DBD) parallel-plate reactor; an atmospheric pressure glow discharge plasma jet reactor and a DBD coaxial type reactor. The samples treated with the plasma were characterized by the pH value at the point of zero charge. An estimation of the adsorption properties of samples for copper ions in aqueous solution was also carried out in order to explain the effect of pH value on the adsorption results.

Satoshi Kodama; Hidetoshi Sekiguchi

2006-01-01T23:59:59.000Z

9

East Gate  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

East East Gate to: Rt. 59 Fermilab Village Main Entrance B u tt e r fi e ld R d . to: Farnsworth Ave, I-88 Kirk Rd. Site 56 Site 55 Buffalo Farm Lederman Science Center (Public Welcome) Prairie Trails Dog Training Area Nature Area Lake Law A.E. Sea Technical Division Illinois Accelerator Research Center Feynman Computing Center Muon Delivery Ring Main Injector Tevatron Test Accelerators Site 37 Site 39 Site 38 Neutrino Experiments Silicon Detector Facility Test Beam Facility DAB Site 50 Wilson Hall & Ramsey Auditorium (Public Welcome) Wilson St. Gate (Deliveries, Employees) NML CMTF A 1 R D D R D B RD S E O LA R D B A T A V I A R D E WILSON ST WILSON ST P IN E S T P O W E R L I N E R D N E O LA R D MCCHESNEY RD A B C D E 5 4 3 2 1 ´ 0 0.5 1 0.25 Miles Trails Public Areas Buildings Roads/Parking Ponds Fermi National Accelerator Laboratory 2013 Fermilab Site Map

10

GaTe semiconductor for radiation detection  

DOE Patents [OSTI]

GaTe semiconductor is used as a room-temperature radiation detector. GaTe has useful properties for radiation detectors: ideal bandgap, favorable mobilities, low melting point (no evaporation), non-hygroscopic nature, and availability of high-purity starting materials. The detector can be used, e.g., for detection of illicit nuclear weapons and radiological dispersed devices at ports of entry, in cities, and off shore and for determination of medical isotopes present in a patient.

Payne, Stephen A. (Castro Valley, CA); Burger, Arnold (Nashville, TN); Mandal, Krishna C. (Ashland, MA)

2009-06-23T23:59:59.000Z

11

Effective phase control of silicon films during high-rate deposition in atmospheric-pressure very high-frequency plasma: Impacts of gas residence time on the performance of bottom-gate thin film transistors  

Science Journals Connector (OSTI)

Abstract Hydrogenated amorphous silicon (a-Si) and microcrystalline silicon (?c-Si) films were grown in atmospheric-pressure (AP) He/H2/SiH4 plasma excited by a 150-MHz very high-frequency (VHF) power at a temperature of 220C. The variations in thickness and crystallinity of the deposited Si films along the gas flow direction were studied as functions of gas residence time in the plasma, VHF power density and H2 flow rate. Furthermore, the electrical characteristics of bottom-gate thin film transistors (TFTs) were investigated to evaluate the film quality. The results revealed that the chemical reactions both in gas phase and on the growing film surface were significantly enhanced in AP-VHF plasma, promoting phase transition from amorphous to microcrystalline in a time of the order of 0.1ms. The performance of the \\{TFTs\\} showed that a-Si layers formed in the upstream portion of the plasma zone had reasonably good electrical property (field-effect mobility of approximately 2cm2/Vs) despite very high deposition rates around 20nm/s. While ?c-Si layers deposited in the downstream portion were very defective, which might come from the insufficient passivation of grain boundaries with a-Si tissues due to a too long gas residence time in the plasma. The precise control of gas residence time by adjusting the length of plasma will be effective for the phase control of Si films with desired quality.

H. Kakiuchi; H. Ohmi; T. Yamada; A. Hirano; T. Tsushima; W. Lin; K. Yasutake

2013-01-01T23:59:59.000Z

12

Optical NAND gate  

SciTech Connect (OSTI)

An optical NAND gate is formed from two pair of optical waveguide devices on a substrate, with each pair of the optical waveguide devices consisting of an electroabsorption modulator and a photodetector. One pair of the optical waveguide devices is electrically connected in parallel to operate as an optical AND gate; and the other pair of the optical waveguide devices is connected in series to operate as an optical NOT gate (i.e. an optical inverter). The optical NAND gate utilizes two digital optical inputs and a continuous light input to provide a NAND function output. The optical NAND gate can be formed from III-V compound semiconductor layers which are epitaxially deposited on a III-V compound semiconductor substrate, and operates at a wavelength in the range of 0.8-2.0 .mu.m.

Skogen, Erik J. (Albuquerque, NM); Raring, James (Goleta, CA); Tauke-Pedretti, Anna (Albuquerque, NM)

2011-08-09T23:59:59.000Z

13

Pressure-composition relations for coexisting gases and liquids and the critical points in the system NaCl-H/sub 2/O at 450, 475, and 500/sup 0/Ccks  

SciTech Connect (OSTI)

Pressure-temperature-composition (P, T, x) relations for the co-existing vapor and liquid phases in the system NaCl-H/sub 2/O were determined experimentally at 450, 475, and 500/sup 0/C. Data for each isotherm include P-x relations near the critical point and extend to the three-phase assemblage vapor-liquid-halite on the vapor side. On the liquid side the P-x data range from the critical point to the room-temperature halite saturation point (approx. 25 wt.% NaCl). Critical pressures were calculated from measured pressures and compositions and classical theory. The results generally support the few data points of Urusova and Oelander and Liander but differ markedly from the extensive data of Sourirajan and Kennedy.

Rosenbauer, R.J.; Bischoff, J.L.

1987-09-01T23:59:59.000Z

14

Optical NOR gate  

DOE Patents [OSTI]

An optical NOR gate is formed from two pair of optical waveguide devices on a substrate, with each pair of the optical waveguide devices consisting of an electroabsorption modulator electrically connected in series with a waveguide photodetector. The optical NOR gate utilizes two digital optical inputs and a continuous light input to provide a NOR function digital optical output. The optical NOR gate can be formed from III-V compound semiconductor layers which are epitaxially deposited on a III-V compound semiconductor substrate, and operates at a wavelength in the range of 0.8-2.0 .mu.m.

Skogen, Erik J. (Albuquerque, NM); Tauke-Pedretti, Anna (Albuquerque, NM)

2011-09-06T23:59:59.000Z

15

Cellular Gate Technology  

E-Print Network [OSTI]

We propose a biochemically plausible mechanism for constructing digital logic signals and gates of significant complexity within living cells. These mechanisms rely largely on co-opting existing biochemical machinery and ...

Knight, Thomas F.

1998-01-05T23:59:59.000Z

16

Advanced insulated gate bipolar transistor gate drive  

DOE Patents [OSTI]

A gate drive for an insulated gate bipolar transistor (IGBT) includes a control and protection module coupled to a collector terminal of the IGBT, an optical communications module coupled to the control and protection module, a power supply module coupled to the control and protection module and an output power stage module with inputs coupled to the power supply module and the control and protection module, and outputs coupled to a gate terminal and an emitter terminal of the IGBT. The optical communications module is configured to send control signals to the control and protection module. The power supply module is configured to distribute inputted power to the control and protection module. The control and protection module outputs on/off, soft turn-off and/or soft turn-on signals to the output power stage module, which, in turn, supplies a current based on the signal(s) from the control and protection module for charging or discharging an input capacitance of the IGBT.

Short, James Evans (Monongahela, PA); West, Shawn Michael (West Mifflin, PA); Fabean, Robert J. (Donora, PA)

2009-08-04T23:59:59.000Z

17

Energy and pressure of shearing fluids at different state points Jialin Ge, Gianluca Marcelli, B. D. Todd,* and Richard J. Sadus  

E-Print Network [OSTI]

simulations are performed at the Lennard-Jones triple point, a point midway between the triple point) (1.034 g cm 3 ,135 K), representative of the liquid phase of argon approximately midway between

18

Encapsulated gate-all-around InAs nanowire field-effect transistors  

SciTech Connect (OSTI)

We report the fabrication of lateral gate-all-around InAs nanowire field-effect transistors whose gate overlaps the source and drain electrodes and thus fully encapsulates the nanowire channel. They feature large drive current and transconductance that surpass those of conventional non-gate-overlap devices. The improved device characteristics can be attributed to the elimination of access resistance associated with ungated segments between the gate and source/drain electrodes. Our data also reveal a correlation between the normalized transconductance and the threshold voltage, which points to a beneficial effect of our wet-etching procedure performed prior to the atomic-layer-deposition of the gate dielectric.

Sasaki, Satoshi, E-mail: sasaki.s@lab.ntt.co.jp; Tateno, Kouta; Zhang, Guoqiang; Suominen, Henri; Harada, Yuichi; Saito, Shiro; Fujiwara, Akira; Sogawa, Tetsuomi; Muraki, Koji [NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan)] [NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198 (Japan)

2013-11-18T23:59:59.000Z

19

Sizing sliding gate valves for steam service  

SciTech Connect (OSTI)

Sliding gate valves have been used in thousands of applications during the past 40 yr. While steam control is a common application for these valves, thy are also used to control other gases and liquids. The sliding gate design provides straight-through flow, which minimizes turbulence, vibration, and noise. Seats are self-cleaning and self-lapping to provide a tight, long-lasting shutoff. A correctly sized valve is essential for accurate control. Valve size should be determined by service and system requirements, not by the size of the existing pipeline. Sizing a valve on the basis of pipeline size usually results in an oversized valve and poor control. Generally, regulator size is smaller than pipe size. Whenever complete information is known (inlet pressure, outlet pressure, or pressure drop, and required flow), determine the valve flow coefficient (C{sub v}) using the equations in ANSI/ISA S75.01 or a flow sizing chart. Tables of values for various types of valves are available from manufacturers. However, when complete system requirements are not known, valve oversizing is prevented by determining the design capacity of piping downstream from the valve. The valve should not be sized to pass more flow than the maximum amount the pipe can handle at a reasonable velocity. An example calculation is given.

Bollinger, R. [Jordan Value, Cincinnati, OH (United States)

1995-11-06T23:59:59.000Z

20

Rapid optimization of working parameters of microwave-driven multilevel qubits for minimal gate leakage  

E-Print Network [OSTI]

.0134 is the interaction between the qubits, .0020 .0136 M=L is the coupling constant, and x i , x ei , and h.0133x i .0134 (i .0136 1 and 2) are the canonical coordinate, normal- ized external flux, and Hamiltonian of the ith single qubit. Note... for the gate at the point B. The quality of a gate can be described by gate fidelity F .0017 Trace.0137.0026 P .0026 I .0138, where .0026 P and.0026 I are the physical and ideal density matrices after gate operation and the overline denotes averaging over all...

Zhou, Zhongyuan; Han, Siyuan; Chu, Shih-I

2005-09-16T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

BILL GATES, AIDS GIVING, AND TAX REBATES  

Science Journals Connector (OSTI)

BILL GATES, AIDS GIVING, AND TAX REBATES ... Gates Foundation's support for global health inspires ideas on how to spend the tax rebate ...

PAMELA S. ZURER

2001-07-30T23:59:59.000Z

22

Developing Language Processing Components with GATE  

E-Print Network [OSTI]

Developing Language Processing Components with GATE (a User Guide) For GATE version 3 beta 1 (July.3 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4 [D] Get Started

Maynard, Diana

23

Anti-coherence based molecular electronics: XOR-gate response  

E-Print Network [OSTI]

Anti-coherence based molecular electronics: XOR-gate response Roi Baera,*, Daniel Neuhauserb 90095-1569, USA Received 18 August 2001 Abstract We point out and simulate the possible utility of anti-coherence phase condition on the loop structure, the transfer would be anti- coherent. By applying one or two

Baer, Roi

24

from Microsoft's Bill Gates. Summer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

with backing from Microsoft's Bill Gates. Summer fun (pages 4-5) All aboard a bus or train and tour Y-12 and the Secret City. August 2012 Visit us Many phrases can be used to...

25

Optimal control for fast and high-fidelity quantum gates in coupled superconducting flux qubits  

E-Print Network [OSTI]

We apply the quantum optimal control theory based on the Krotov method to implement single-qubit $X$ and $Z$ gates and two-qubit CNOT gates for inductively coupled superconducting flux qubits with fixed qubit transition frequencies and fixed off-diagonal qubit-qubit coupling. Our scheme that shares the same advantage of other directly coupling schemes requires no additional coupler subcircuit and control lines. The control lines needed are only for the manipulation of individual qubits (e.g., a time-dependent magnetic flux or field applied on each qubit). The qubits are operated at the optimal coherence points and the gate operation times (single-qubit gates $magnetic-field-induced single-qubit interactions and two-qubit couplings. The effect of leakage to higher energy-level states and the effect of qubit decoherence on the quantum gate operations are also discussed.

Shang-Yu Huang; Hsi-Sheng Goan

2014-06-30T23:59:59.000Z

26

Looking at Transistor Gate Oxide Formation in Real Time  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

27

Looking at Transistor Gate Oxide Formation in Real Time  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

28

Looking at Transistor Gate Oxide Formation in Real Time  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Looking at Transistor Gate Oxide Formation in Real Time Print Looking at Transistor Gate Oxide Formation in Real Time Print The oxide gate layer is critical to every transistor, and present-day layer thicknesses are in the 10-20 Å range (1-2 nm). However, little information exists on the oxidation process at this thickness. Available results are either for thicker layers grown under high-pressure conditions or for only the first couple of monolayers studied under high-vacuum conditions. Now, for the first time, a group of researchers has obtained real-time oxidation results for this elusive range. Using the ambient-pressure x-ray photoelectron spectroscopy (APXPS) endstation at ALS Beamline 9.3.2, they examined oxidation of Si(100) at pressures up to 1 torr and temperatures up to 450 ºC. The Si 2p chemical shifts allowed determination of oxide thickness as a function of time with a precision of 1-2 Å. The initial oxidation rate was very high (up to ~234 Å/h). Then, after an initial oxide thickness of 6-22 Å was formed, the rate decreased markedly (~1.5-4.0Å/h). Neither rate regime can be explained by the standard Deal-Grove (D-G) model for Si oxidation. These results are a significant step toward developing a better understanding of this critical thickness regime.

29

Screening in gated bilayer graphene  

Science Journals Connector (OSTI)

The tight-binding model of a graphene bilayer is used to find the gap between the conduction and valence bands, as a function of both the gate voltage and as the doping by donors or acceptors. The total Hartree energy is minimized and the equation for the gap is obtained. This equation for the ratio of the gap to the chemical potential is determined only by the screening constant. Thus the gap is strictly proportional to the gate voltage or the carrier concentration in the absence of donors or acceptors. In the opposite case, where the donors or acceptors are present, the gap demonstrates the asymmetrical behavior on the electron and hole sides of the gate bias.

L. A. Falkovsky

2009-09-30T23:59:59.000Z

30

Decomposition of Diagonal Hermitian Quantum Gates Using Multiple-Controlled Pauli Z Gates  

E-Print Network [OSTI]

Quantum logic decomposition refers to decomposing a given quantum gate to a set of physically implementable gates. An approach has been presented to decompose arbitrary diagonal quantum gates to a set of multiplexed-rotation gates around z axis. In this paper, a special class of diagonal quantum gates, namely diagonal Hermitian quantum gates, is considered and a new perspective to the decomposition problem with respect to decomposing these gates is presented. It is first shown that these gates can be decomposed to a set that solely consists of multiple-controlled Z gates. Then a binary representation for the diagonal Hermitian gates is introduced. It is shown that the binary representations of multiple-controlled Z gates form a basis for the vector space that is produced by the binary representations of all diagonal Hermitian quantum gates. Moreover, the problem of decomposing a given diagonal Hermitian gate is mapped to the problem of writing its binary representation in the specific basis mentioned above. Moreover, CZ gate is suggested to be the two-qubit gate in the decomposition library, instead of previously used CNOT gate. Experimental results show that the proposed approach can lead to circuits with lower costs in comparison with the previous ones.

Mahboobeh Houshmand; Morteza Saheb Zamani; Mehdi Sedighi; Mona Arabzadeh

2014-05-26T23:59:59.000Z

31

Improvement of the cantilever grooveless gate  

Science Journals Connector (OSTI)

1. The grooveless multisectional gate permits closing openings of any width without dividing the conduit into se...

S. M. Slisskii; P. R. Khlopenkov; E. G. Chernenko

1976-01-01T23:59:59.000Z

32

The gated community: residents' crime experience and perception of safety behind gates and fences in the urban area  

E-Print Network [OSTI]

regarding the connections between gated community territory, safety, and crime experience, this study classifies apartment communities according to the conditions of their gating and fencing: gated communities, perceived gated communities, and non...

Kim, Suk Kyung

2006-10-30T23:59:59.000Z

33

Graduate Automotive Technology Education (GATE) Initiative Awards |  

Broader source: Energy.gov (indexed) [DOE]

Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards September 8, 2011 - 11:46am Addthis Graduate Automotive Technology Education (GATE) Initiative Awards DOE's Graduate Automotive Technology Education (GATE) initiative will award $6.4 million over the course of five years to support seven Centers of Excellence at American colleges, universities, and university-affiliated research institutions. The awardees will focus on three critical automotive technology areas: hybrid propulsion, energy storage, and lightweight materials. By funding curriculum development and expansion as well as laboratory work, GATE allows higher education institutions to develop multidisciplinary training. As a result, GATE promotes the development of a

34

Graduate Automotive Technology Education (GATE) Initiative Awards |  

Broader source: Energy.gov (indexed) [DOE]

Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards Graduate Automotive Technology Education (GATE) Initiative Awards September 8, 2011 - 11:46am Addthis Graduate Automotive Technology Education (GATE) Initiative Awards DOE's Graduate Automotive Technology Education (GATE) initiative will award $6.4 million over the course of five years to support seven Centers of Excellence at American colleges, universities, and university-affiliated research institutions. The awardees will focus on three critical automotive technology areas: hybrid propulsion, energy storage, and lightweight materials. By funding curriculum development and expansion as well as laboratory work, GATE allows higher education institutions to develop multidisciplinary training. As a result, GATE promotes the development of a

35

Golden Gate Park Marina Blvd.  

E-Print Network [OSTI]

St. Eureka S.VanNessAve. M arket St. Broadway St. To Golden Gate Bridge H ow ard St. Folsom St. Bryant St. 10 Bridge to/from Oakland C hannel St. 2nd St. Pine St. California St. California St. Clement St. Lake St From the East Bay and Oakland Airport 1. Cross Bay Bridge (I­80 West) 2. Exit on left 2A / 5th St. 3

Derisi, Joseph

36

Sulfur surface chemistry on the platinum gate of a silicon carbide based hydrogen sensor  

E-Print Network [OSTI]

monitoring, solid-oxide fuel cells, and coal gasification, require operation at much higher temperatures thanSulfur surface chemistry on the platinum gate of a silicon carbide based hydrogen sensor Yung Ho to hydrogen sulfide, even in the presence of hydrogen or oxygen at partial pressures of 20­600 times greater

Tobin, Roger G.

37

Fast Quantum Gates for Neutral Atoms  

Science Journals Connector (OSTI)

We propose several schemes for implementing a fast two-qubit quantum gate for neutral atoms with the gate operation time much faster than the time scales associated with the external motion of the atoms in the trapping potential. In our example, the large interaction energy required to perform fast gate operations is provided by the dipole-dipole interaction of atoms excited to low-lying Rydberg states in constant electric fields. A detailed analysis of imperfections of the gate operation is given.

D. Jaksch; J. I. Cirac; P. Zoller; S. L. Rolston; R. Ct; M. D. Lukin

2000-09-04T23:59:59.000Z

38

detonation pressure  

Science Journals Connector (OSTI)

detonation pressure ? Detonationsdruck m [Er ist dem Quadrat der Detonationsgeschwindigkeit und der Sprengstoffdichte proportional

2014-08-01T23:59:59.000Z

39

Talking Points  

U.S. Energy Information Administration (EIA) Indexed Site

Talking Points Talking Points NATURAL GAS MARKET INTEGRITY: How EIA Helps Presentation by William F. Hederman Congressional Research Service at EIA 30 th Anniversary Conference April 8, 2008 Washington, DC INTRODUCTION 1. Price levels and volatility cause suspicions. 2. Actual integrity and perceived integrity are both important for markets. 3. EIA was created in response to a crisis of confidence in energy market information. CANDIDATE INTEGRITY CRITERIA 1. Transparency 2. Efficiency (gathering, reporting, monitoring data) v. equity 3. Stability/predictability v. dynamism/volatility 4. Clarity (understanding) "DRAFT" TEN COMMANDMENTS/SUGGESTIONS 1. First presented at World Energy Congress, Rome, Nov. 2007 panel on Energy Market Integrity.

40

Automatically closing swing gate closure assembly  

DOE Patents [OSTI]

A swing gate closure assembly for nuclear reactor tipoff assembly wherein the swing gate is cammed open by a fuel element or spacer but is reliably closed at a desired closing rate primarily by hydraulic forces in the absence of a fuel charge.

Chang, Shih-Chih (Richland, WA); Schuck, William J. (Richland, WA); Gilmore, Richard F. (Kennewick, WA)

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Quantum logic gates for superconducting resonator qudits  

SciTech Connect (OSTI)

We study quantum information processing using superpositions of Fock states in superconducting resonators as quantum d-level systems (qudits). A universal set of single and coupled logic gates is theoretically proposed for resonators coupled by superconducting circuits of Josephson junctions. These gates use experimentally demonstrated interactions and provide an attractive route to quantum information processing using harmonic oscillator modes.

Strauch, Frederick W. [Williams College, Williamstown, Massachusetts 01267 (United States)

2011-11-15T23:59:59.000Z

42

Form drag at Three Tree Point  

E-Print Network [OSTI]

form drag with bottom pressure sensors #12;Oscillatory dynamics tidal energy converted to internal waves, eddies and mixing no tidally averaged work done on system slack tide: background tilt flood & ebb Puget Sound, WA Point Three Tree Pressure sensors (PPODs) at Three Tree Point (TTP) PPODs #12;PPOD

Warner, Sally

43

Journal Article: Gate-tunable exchange coupling between cobalt...  

Office of Scientific and Technical Information (OSTI)

Gate-tunable exchange coupling between cobalt clusters on graphene Citation Details Title: Gate-tunable exchange coupling between cobalt clusters on graphene Authors: Chen, Hua;...

44

The University of Tennessee's GATE Center for Hybrid Systems...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

The University of Tennessee's GATE Center for Hybrid Systems The University of Tennessee's GATE Center for Hybrid Systems 2009 DOE Hydrogen Program and Vehicle Technologies Program...

45

The University of Tennessee's GATE Center for Hybrid Systems...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

The University of Tennessee's GATE Center for Hybrid Systems The University of Tennessee's GATE Center for Hybrid Systems Presentation from the U.S. DOE Office of Vehicle...

46

Gating of Permanent Molds for ALuminum Casting  

SciTech Connect (OSTI)

This report summarizes a two-year project, DE-FC07-01ID13983 that concerns the gating of aluminum castings in permanent molds. The main goal of the project is to improve the quality of aluminum castings produced in permanent molds. The approach taken was determine how the vertical type gating systems used for permanent mold castings can be designed to fill the mold cavity with a minimum of damage to the quality of the resulting casting. It is evident that somewhat different systems are preferred for different shapes and sizes of aluminum castings. The main problems caused by improper gating are entrained aluminum oxide films and entrapped gas. The project highlights the characteristic features of gating systems used in permanent mold aluminum foundries and recommends gating procedures designed to avoid common defects. The study also provides direct evidence on the filling pattern and heat flow behavior in permanent mold castings.

David Schwam; John F. Wallace; Tom Engle; Qingming Chang

2004-03-30T23:59:59.000Z

47

Pressure &Pressure & TemperatureTemperature  

E-Print Network [OSTI]

to measure atmospheric pressure, and thermometer toprobe to measure atmospheric pressure, and thermometer toprobe to measure atmospheric pressure, and thermometer toprobe to measure atmospheric pressure, and thermometer to measure air temperature.measure air temperature.measure air temperature.measure air temperature

California at Santa Cruz, University of

48

Properties of nitrogen doped silicon films deposited by low pressure chemical vapour deposition from disilane and ammonia  

Science Journals Connector (OSTI)

Nitrogen doped silicon films have been deposited by low pressure chemical vapour deposition from disilane Si2H6 and ammonia NH3. Deposition kinetics is investigated, pointing out the influences of the deposition temperature, the total pressure and the gas flow rates. According to the Bruggeman theory, variations of the NH3/Si2H6 gaseous ratio allow for a wide range of the SiNx stoichiometry as well as a good control of the film nitrogen doping. The different behaviours of the nitrogen atom in silicon films are discussed and an overview of the nitrogen doped silicon physical properties (optical, mechanical and electrical) is proposed for the development of boron-doped polysilicon gates.

P Temple-Boyer; L Jalabert; E Couderc; E Scheid; P Fadel; B Rousset

2002-01-01T23:59:59.000Z

49

Water gate array for current flow or tidal movement pneumatic harnessing system  

DOE Patents [OSTI]

The invention, which provides a system for harnessing power from current flow or tidal movement in a body of water, comprises first and second hydro-pneumatic chambers each having ingress and egress below the water surface near the river or ocean floor and water gates operative to open or seal the ports to the passage of water. In an exemplary embodiment, the gates are sychronized by shafts so that the ingress ports of each chamber are connected to the egress ports of each other chamber. Thus, one set of gates is closed, while the other is open, thereby allowing water to flow into one chamber and build air pressure therein and allowing water to flow out of the other chamber and create a partial vacuum therein. A pipe connects the chambers, and an air turbine harnesses the air movement within the pipe. When water levels are equilibrated, the open set of gates is closed by a counterweight, and the other set is allowed to open by natural force of the water differential. The water gates may be comprised of a plurality of louvers which are ganged for simultaneous opening and closing. The system is designed to operate with air turbines or other pneumatic devices. Its design minimizes construction cost and environmental impact, yet provides a clean renewable energy source.

Gorlov, Alexander M. (Brookline, MA)

1991-01-01T23:59:59.000Z

50

David A Gates | Princeton Plasma Physics Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Gates A Gates Principal Research Physicist, Stellerator Physics Lead, Advanced Projects Division, Science Focus Group Leader for Macroscopic Stability David Gates is a principal research physicist for the advanced projects division of PPPL, and the stellarator physics leader at the Laboratory. In the latter capacity he leads collaborative efforts with the Wendelstein 7-X and Large Helical Device stellarator projects in Germany and Japan, respectively. Gates is first author of more than a dozen research papers, including an April, 2012, paper that proposed a possible solution to a critical barrier to fusion as a source of energy for generating electricity. Interests Collisional energy transport High-frequency Alfvén waves Fast-ion energy transfer Ideal and resistive magneto-hydrodynamic stability

51

Gate potential control of nanofluidic devices  

E-Print Network [OSTI]

The effect of an external gate potential control on the nanofluidic nanochannels was experimentally investigated in this work. Like in the field effect transistors (FET) in microelectronics, molecular transport in ...

Le Coguic, Arnaud

2005-01-01T23:59:59.000Z

52

Digital gate pulse generator for cycloconverter control  

DOE Patents [OSTI]

The present invention provides a digital gate pulse generator which controls the output of a cycloconverter used for electrical power conversion applications by determining the timing and delivery of the firing pulses to the switching devices in the cycloconverter. Previous gate pulse generators have been built with largely analog or discrete digital circuitry which require many precision components and periodic adjustment. The gate pulse generator of the present invention utilizes digital techniques and a predetermined series of values to develop the necessary timing signals for firing the switching device. Each timing signal is compared with a reference signal to determine the exact firing time. The present invention is significantly more compact than previous gate pulse generators, responds quickly to changes in the output demand and requires only one precision component and no adjustments.

Klein, Frederick F. (Monroeville, PA); Mutone, Gioacchino A. (Pleasant Hills, PA)

1989-01-01T23:59:59.000Z

53

Yuanmingyuan East Gate of Peking University  

E-Print Network [OSTI]

Dingxiangyuan Cafeteria SupermarketI Parking 32 Northeast Gate C Building C Swimming Hall East Playground and New Energy Technology 32 Institute of Education Schools & Departments A Foreign Student Affairs

Gu, Jin

54

ARM - Measurement - Atmospheric pressure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

pressure pressure ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Atmospheric pressure The pressure exerted by the atmosphere as a consequence of gravitational attraction exerted upon the "column" of air lying directly above the point in question. Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments SONDE : Balloon-Borne Sounding System CO2FLX : Carbon Dioxide Flux Measurement Systems ECOR : Eddy Correlation Flux Measurement System

55

Paying the Toll: A Political History of the Golden Gate Bridge and Highway District, 1923-1971  

E-Print Network [OSTI]

Gate: the Construction of the Golden Gate Bridge and HighwayCommittee on Golden Gate Bridge and Highway District,versus the Golden Gate Bridge . . . . . . . . . . . . . . .

Dyble, Amy Louise Nelson

2003-01-01T23:59:59.000Z

56

Voltage-gated Ion Channels and Gating Modifier Toxins William A. Catterall,* Sandrine Cestle,  

E-Print Network [OSTI]

;2 Abstract Voltage-gated sodium, calcium, and potassium channels generate electrical signals required and a pore loop. Their pores are formed by the S5/S6 segments and the pore loop between them and are gated and participate in calcium signaling pathways in nonexcitable cells. Because of their importance in many aspects

Paris-Sud XI, Université de

57

Gated SIT vidicon streak tube  

SciTech Connect (OSTI)

A recently developed prototype streak tube designed to produce high gain and resolution by incorporating the streak and readout functions in one envelope thereby minimizing photon-to-change transformations and eliminating external coupling losses is presented. The tube is based upon a grid-gated Silicon-Intensified-Target Vidicon (SITV) with integral Focus Projection Scan (FPS) TV readout. Demagnifying electron optics (m=0.63) in the image section map the 40-mm-diameter photocathode image unto a 25-mm-diameter silicon target where gains greater than or equal to10/sup 3/ are achieved with only 10 KV accelerating voltage. This is compared with much lower gains (approx.50) at much higher voltages (approx.30 KV) reported for streak tubes using phosphor screens. Because SIT technology is well established means for electron imaging in vacuum, such fundamental problems as ''backside thinning'' required for electron imaging unto CCDs do not exist. The high spatial resolution (approx.30 lp/mm), variable scan formats, and high speed electrostatic deflection (250 mm/sup 2/ areas are routinely rastered with 256 scan lines in 1.6 ms) available from FPS readout add versatility not available in CCD devices. Theoretical gain and spatial resolution for this design (developed jointly by Los Alamos National Laboratory and General Electric Co.) are compared with similar calculations and measured data obtained for RCA 73435 streaks fiber optically coupled to (1) 25-mm-diameter SIT FPS vidicons and (2) 40-mm-diameter MCPTs (proximity-focused microchannel plate image intensifier tubes) fiber optically coupled to 18-mm-diameter Sb/sub 2/S/sub 3/ FPS vidicons. Sweep sensitivity, shutter ratio, and record lengths for nanosecond duration (20 to 200 ns) streak applications are discussed.

Dunbar, D.L.; Yates, G.J.; Black, J.P.

1985-01-01T23:59:59.000Z

58

The Defeat of the Golden Gate Authority: Regional Planning and Local Power  

E-Print Network [OSTI]

Regional Politics and the Golden Gate Bridge, Philadelphia:Politics and the Golden Gate Bridge, won the Abel WolmanBridge and the Golden Gate Bridge. Moreover, interregional

Dyble, Louise Nelson

2012-01-01T23:59:59.000Z

59

Heralded quantum gates with integrated error detection in optical cavitites  

E-Print Network [OSTI]

We propose and analyze heralded quantum gates between qubits in optical cavities. They employ an auxiliary qubit to report if a successful gate occurred. In this manner, the errors, which would have corrupted a deterministic gate, are converted into a non-unity probability of success: once successful the gate has a much higher fidelity than a similar deterministic gate. Specifically, we describe that a heralded , near-deterministic controlled phase gate (CZ-gate) with the conditional error arbitrarily close to zero and the success probability that approaches unity as the cooperativity of the system, C, becomes large. Furthermore, we describe an extension to near-deterministic N- qubit Toffoli gate with a favorable error scaling. These gates can be directly employed in quantum repeater networks to facilitate near-ideal entanglement swapping, thus greatly speeding up the entanglement distribution.

J. Borregaard; P. Kmr; E. M. Kessler; A. S. Srensen; M. D. Lukin

2015-01-05T23:59:59.000Z

60

Osmotic Pressure  

Science Journals Connector (OSTI)

... Whetham in which he attempts to consign actual experimental work on osmotic pressure to the humble rle of showing how far the assumptions made in so-called thermodynamical proofs can be ... actual osmotic processes, and that the experimental work on osmotic pressure does not play that humble rle to which Mr. Whetham would consign it. ...

LOUIS KAHLENBERG

1906-07-05T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Provably minimal energy using coordinated DVS and power gating  

Science Journals Connector (OSTI)

Both energy and execution speed can be greatly impacted by clock and power gating, nonlinear voltage scaling, and leakage energy. We address the problem of coordinated power gating and dynamic voltage scaling (DVS) to minimize the overall energy consumption ...

Nathaniel A. Conos; Saro Meguerdichian; Foad Dabiri; Miodrag Potkonjak

2014-03-01T23:59:59.000Z

62

Effect of Oxygen on Ni-Silicided FUSI Metal Gate  

E-Print Network [OSTI]

Continual evolution of the CMOS technology requires thinner gate dielectric to maintain high performance. However, when moving into the sub-65 nm CMOS generation, the traditional poly-Si gate approach cannot effectively ...

Yu, H.P.

63

GATE Center of Excellence at UAB for Lightweight Materials and...  

Broader source: Energy.gov (indexed) [DOE]

Constante (PhD candidate) and Samuel Jasper (PhD candidate) working on composite beams 9 Accomplishments and Progress: GATE Directly Funded Students (2005-2011) GATE SCHOLAR...

64

Microsoft PowerPoint - Module 15 - Accident Analysis Tools- final...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

available for heat transfer - Reactor modeled using point kinetics - Pressure drop using loss factors or friction factor correlations - Heat transfer based on Nusselt number...

65

Operating conditions of submerged gates and possibilities of improvement  

Science Journals Connector (OSTI)

1. Submerged gates, employed at high-head hydroelectric stations, do not completely meet the demands placed on t...

P. R. Khlopenkov

1971-06-01T23:59:59.000Z

66

Steam Oxidation at High Pressure  

SciTech Connect (OSTI)

A first high pressure test was completed: 293 hr at 267 bar and 670{degrees}C; A parallel 1 bar test was done for comparison; Mass gains were higher for all alloys at 267 bar than at 1 bar; Longer term exposures, over a range of temperatures and pressures, are planned to provide information as to the commercial implications of pressure effects; The planned tests are at a higher combination of temperatures and pressures than in the existing literature. A comparison was made with longer-term literature data: The short term exposures are largely consistent with the longer-term corrosion literature; Ferritic steels--no consistent pressure effect; Austenitic steels--fine grain alloys less able to maintain protective chromia scale as pressure increases; Ni-base alloys--more mass gains above 105 bar than below. Not based on many data points.

Holcomb, Gordon R. [NETL; Carney, Casey [URS

2013-07-19T23:59:59.000Z

67

Spectroscopy and capacitance measurements of tunneling resonances in an Sb-implanted point contact.  

SciTech Connect (OSTI)

We fabricated a split-gate defined point contact in a double gate enhancement mode Si-MOS device, and implanted Sb donor atoms using a self-aligned process. E-beam lithography in combination with a timed implant gives us excellent control over the placement of dopant atoms, and acts as a stepping stone to focused ion beam implantation of single donors. Our approach allows us considerable latitude in experimental design in-situ. We have identified two resonance conditions in the point contact conductance as a function of split gate voltage. Using tunneling spectroscopy, we probed their electronic structure as a function of temperature and magnetic field. We also determine the capacitive coupling between the resonant feature and several gates. Comparison between experimental values and extensive quasi-classical simulations constrain the location and energy of the resonant level. We discuss our results and how they may apply to resonant tunneling through a single donor.

Wendt, Joel Robert; Rahman, Rajib; Ten Eyck, Gregory A.; Eng, Kevin; Carroll, Malcolm S.; Young, Ralph Watson; Lilly, Michael Patrick; Stalford, Harold Lenn; Bishop, Nathaniel; Bielejec, Edward Salvador

2010-08-01T23:59:59.000Z

68

Radar Vehicle Detection Within Four Quadrant Gate Crossings  

E-Print Network [OSTI]

Vehicle Detection System for Four-Quadrant Gate Warning Systems and Blocked Crossing Detection. Washington. . . . . Radar Vehicle Detection Within Four Quadrant Gate Crossings Dylan Horne 2014 Global Level and delay but ultimately in loss of life. Radar Vehicle Detection Within Four Quadrant Gate Crossings #12

Illinois at Urbana-Champaign, University of

69

New correlations for dew-point, specific gravity and producing yield for gas condensates  

E-Print Network [OSTI]

This work presents four newly developed correlations to estimate dew-point pressure, current specific gravity and producing yield of gas condensate reservoirs. The first correlation may be used to predict the dew-point pressure of the reservoir gas...

Ovalle Cortissoz, Adriana Patricia

2012-06-07T23:59:59.000Z

70

Accuracy and Consistency of Respiratory Gating in Abdominal Cancer Patients  

SciTech Connect (OSTI)

Purpose: To evaluate respiratory gating accuracy and intrafractional consistency for abdominal cancer patients treated with respiratory gated treatment on a regular linear accelerator system. Methods and Materials: Twelve abdominal patients implanted with fiducials were treated with amplitude-based respiratory-gated radiation therapy. On the basis of daily orthogonal fluoroscopy, the operator readjusted the couch position and gating window such that the fiducial was within a setup margin (fiducial-planning target volume [f-PTV]) when RPM indicated beam-ON. Fifty-five pre- and post-treatment fluoroscopic movie pairs with synchronized respiratory gating signal were recorded. Fiducial motion traces were extracted from the fluoroscopic movies using a template matching algorithm and correlated with f-PTV by registering the digitally reconstructed radiographs with the fluoroscopic movies. Treatment was determined to be accurate if 50% of the fiducial area stayed within f-PTV while beam-ON. For movie pairs that lost gating accuracy, a MATLAB program was used to assess whether the gating window was optimized, the external-internal correlation (EIC) changed, or the patient moved between movies. A series of safety margins from 0.5 mm to 3 mm was added to f-PTV for reassessing gating accuracy. Results: A decrease in gating accuracy was observed in 44% of movie pairs from daily fluoroscopic movies of 12 abdominal patients. Three main causes for inaccurate gating were identified as change of global EIC over time (?43%), suboptimal gating setup (?37%), and imperfect EIC within movie (?13%). Conclusions: Inconsistent respiratory gating accuracy may occur within 1 treatment session even with a daily adjusted gating window. To improve or maintain gating accuracy during treatment, we suggest using at least a 2.5-mm safety margin to account for gating and setup uncertainties.

Ge, Jiajia; Santanam, Lakshmi; Yang, Deshan [Department of Radiation Oncology, Washington University School of Medicine, St Louis, Missouri (United States)] [Department of Radiation Oncology, Washington University School of Medicine, St Louis, Missouri (United States); Parikh, Parag J., E-mail: pparikh@radonc.wustl.edu [Department of Radiation Oncology, Washington University School of Medicine, St Louis, Missouri (United States)

2013-03-01T23:59:59.000Z

71

Gate-controlled ultraviolet photo-etching of graphene edges  

SciTech Connect (OSTI)

The chemical reactivity of graphene under ultraviolet (UV) light irradiation is investigated under positive and negative gate electric fields. Graphene edges are selectively etched when negative gate voltages are applied while the reactivity is significantly suppressed for positive gate voltages. Oxygen adsorption onto graphene is significantly affected by the Fermi level of the final state achieved during previous electrical measurements. UV irradiation after negative-to-positive gate sweeps causes predominant oxygen desorption while UV irradiation after gate sweeps in the opposite direction causes etching of graphene edges.

Mitoma, Nobuhiko; Nouchi, Ryo [Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, Sakai, Osaka 599-8570 (Japan)] [Nanoscience and Nanotechnology Research Center, Osaka Prefecture University, Sakai, Osaka 599-8570 (Japan)

2013-11-11T23:59:59.000Z

72

Improving the fidelity of optical Zeno gates via distillation  

SciTech Connect (OSTI)

We have modeled the Zeno effect controlled-sign gate of Franson et al. [Phys. Rev. A 70, 062302 (2004)] and shown that high two-photon to one-photon absorption ratios, {kappa}, are needed for high fidelity free-standing operation. Hence we instead employ this gate for cluster state fusion, where the requirement for {kappa} is less restrictive. With the help of partially offline one-photon and two-photon distillations, we can achieve a fusion gate with unity fidelity but nonunit probability of success. We conclude that for {kappa}>2200, the Zeno fusion gate will out perform the equivalent linear optics gate.

Leung, Patrick M.; Ralph, Timothy C. [Centre for Quantum Computer Technology, Department of Physics, University of Queensland, Brisbane 4072 (Australia)

2006-12-15T23:59:59.000Z

73

AgraGate Carbon Credits Corporation | Open Energy Information  

Open Energy Info (EERE)

AgraGate Carbon Credits Corporation AgraGate Carbon Credits Corporation Jump to: navigation, search Name AgraGate Carbon Credits Corporation Place Des Moines, Iowa Zip 50266 Product Offset aggregators that work with American farmers, ranchers, and private forest owners, providing clients with cash flows produced by the sale of credits. Offsets are sold on the Chicago Climate Exchange References AgraGate Carbon Credits Corporation[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. AgraGate Carbon Credits Corporation is a company located in Des Moines, Iowa . References ↑ "AgraGate Carbon Credits Corporation" Retrieved from "http://en.openei.org/w/index.php?title=AgraGate_Carbon_Credits_Corporation&oldid=341882"

74

Arbitrary two-qubit computation in 23 elementary gates  

SciTech Connect (OSTI)

We address the problem of constructing quantum circuits to implement an arbitrary two-qubit quantum computation. We pursue circuits without ancilla qubits and as small a number of elementary quantum gates as possible. Our lower bound for worst-case optimal two-qubit circuits calls for at least 17 gates: 15 one-qubit rotations and 2 controlled-NOT (CNOT) gates. We also constructively prove a worst-case upper bound of 23 elementary gates, of which at most four (CNOT gates) entail multiqubit interactions. Our analysis shows that synthesis algorithms suggested in previous work, although more general, entail larger quantum circuits than ours in the special case of two qubits. One such algorithm has a worst case of 61 gates, of which 18 may be CNOT gates.

Bullock, Stephen S.; Markov, Igor L. [Department of Mathematics, The University of Michigan, Ann Arbor, Michigan 48109-2122, USA (United States); Mathematical and Computational Sciences Division, National Institute of Standards and Technology, Gaithersburg, Maryland 20899-8910, USA (United States); Department of Electrical Engineering and Computer Science, The University of Michigan, 1301 Beal Avenue-EECS, Ann Arbor, Michigan 48109-2122, USA (United States)

2003-07-01T23:59:59.000Z

75

SETTLEMENT POINTS (Congo, Democra  

E-Print Network [OSTI]

SETTLEMENT POINTS ! ! ! ! ! ! ! ! ! ! ! ! ! ( ( ( ( ( ( ( ( ( ( ( ( ( ! ! ( (Congo, Democra Rwanda Republic of Tanzania Democratic Republic of Congo Settlement Points Administrative Units National

Columbia University

76

Critical point analysis of phase envelope diagram  

SciTech Connect (OSTI)

Phase diagram or phase envelope is a relation between temperature and pressure that shows the condition of equilibria between the different phases of chemical compounds, mixture of compounds, and solutions. Phase diagram is an important issue in chemical thermodynamics and hydrocarbon reservoir. It is very useful for process simulation, hydrocarbon reactor design, and petroleum engineering studies. It is constructed from the bubble line, dew line, and critical point. Bubble line and dew line are composed of bubble points and dew points, respectively. Bubble point is the first point at which the gas is formed when a liquid is heated. Meanwhile, dew point is the first point where the liquid is formed when the gas is cooled. Critical point is the point where all of the properties of gases and liquids are equal, such as temperature, pressure, amount of substance, and others. Critical point is very useful in fuel processing and dissolution of certain chemicals. Here in this paper, we will show the critical point analytically. Then, it will be compared with numerical calculations of Peng-Robinson equation by using Newton-Raphson method. As case studies, several hydrocarbon mixtures are simulated using by Matlab.

Soetikno, Darmadi; Siagian, Ucok W. R. [Department of Petroleum Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia); Kusdiantara, Rudy, E-mail: rkusdiantara@s.itb.ac.id; Puspita, Dila, E-mail: rkusdiantara@s.itb.ac.id; Sidarto, Kuntjoro A., E-mail: rkusdiantara@s.itb.ac.id; Soewono, Edy; Gunawan, Agus Y. [Department of Mathematics, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia)

2014-03-24T23:59:59.000Z

77

Gates, Oregon: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Gates, Oregon: Energy Resources Gates, Oregon: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 44.7562329°, -122.4167483° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.7562329,"lon":-122.4167483,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

78

Microsoft PowerPoint - Proceedings Cover Sheets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Optimum pressure and concentration of CO Optimum pressure and concentration of CO 2 in flue gases for CO 2 capture by antisublimation May 8-11, 2006 * Hilton Alexandria Mark Center * Alexandria, Virginia D. Clodic, M. Younes, Alain Bill Outline * Anti-sublimation CO 2 capture system * Flue gases CO 2 concentration sensitivity analysis * Flue gases pressure sensitivity analysis * High Pressure Flue Gases * Conclusions 2 Anti-sublimation CO 2 capture system * CO 2 capture system based on the CO 2 physical properties * CO 2 triple point is at -56.5 C, 520 kPa, below these temperature and pressure CO 2 is either in gas or solid phase. No liquid. * The CO 2 solid phase requires a defrosting process at a pressure higher then 520 kPa thus a swing process is necessary for continuous operation. 3 A B C D E A' CO 2 capture system on the T-s diagram

79

Definition: Point Absorber | Open Energy Information  

Open Energy Info (EERE)

Point Absorber Point Absorber Jump to: navigation, search Dictionary.png Point Absorber Wave energy capture device, with principal dimension relatively small compared to the wavelength, and is able to capture energy from a wave front greater than the physical dimension of the device. There are floating and submerged models.[1] Related Terms Wave power; PowerBouy References ↑ http://en.wikipedia.org/wiki/Wave_power Poi LikeLike UnlikeLike You like this.Sign Up to see what your friends like. ntabsorber.jpg Example of a Point Absorber A submerged pressure differential wave energy capturing device, which can be considered a fully submerged point absorber. A pressure differential is induced within the device as the wave passes, driving a fluid pump to create mechanical energy. Retrieved from

80

Pressure transducer  

DOE Patents [OSTI]

A pressure transducer suitable for use in high temperature environments includes two pairs of induction coils, each pair being bifilarly wound together, and each pair of coils connected as opposite arms of a four arm circuit; an electrically conductive target moveably positioned between the coil pairs and connected to a diaphragm such that deflection of the diaphragm causes axial movement of the target and an unbalance in the bridge output.

Anderson, Thomas T. (Downers Grove, IL); Roop, Conard J. (Lockport, IL); Schmidt, Kenneth J. (Midlothian, IL); Gunchin, Elmer R. (Lockport, IL)

1989-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Material Point Methods  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Material Point Methods and Multiphysics for Fracture and Multiphase Problems Joseph Teran, UCLA and Alice Koniges, LBL Contact: jteran@math.ucla.edu Material point methods (MPM)...

82

Optical Determination of Gate--Tunable Bandgap in Bilayer Graphene  

E-Print Network [OSTI]

Tunable Bandgap in Bilayer Graphene Yuanbo Zhang* 1 , Tsung-gate-tunable bandgap in graphene bilayers with magnitude asbands. In two- dimensional graphene bilayers this bandgap

Zhang, Yuanbo

2010-01-01T23:59:59.000Z

83

Penn State DOE Graduate Automotive Technology Education (Gate...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Graduate Automotive Technology Education (Gate) Program for In-Vehicle, High-Power Energy Storage Systems 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program...

84

PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational...  

Office of Environmental Management (EM)

Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate...

85

GATE Center of Excellence at UAB for Lightweight Materials and...  

Broader source: Energy.gov (indexed) [DOE]

Constante (PhD candidate) and Samuel Jasper (PhD candidate) working on composite beams GATE courses (some newly developed, some based on tailoring content in existing...

86

Self-terminating diffraction gates femtosecond X-ray nanocrystallograp...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Self-terminating diffraction gates femtosecond X-ray nanocrystallography measurements Authors: Barty, A., Caleman, C., Aquila, A., Timneanu, N., Lomb, L., White, T. A., Andreasson,...

87

Sandia National Laboratories: ECIS and i-GATE: Innovation Hub...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

support system to accelerate the commercialization of innovative technologies related to green transportation and clean energy. There are now eight i-GATE clients developing fuel...

88

Improved design of a deep vertical-lift gate  

Science Journals Connector (OSTI)

1. Redesigning of the framework of a deep vertical-lift gate by replacing the multibeam framework by a two-beam ...

P. R. Khlopenkov

1986-04-01T23:59:59.000Z

89

Vehicle Technologies Office: Graduate Automotive Technology Education (GATE)  

Broader source: Energy.gov [DOE]

DOE established the Graduate Automotive Technology Education (GATE) Centers of Excellence to provide future generations of engineers and scientists with knowledge and skills in advanced automotive...

90

Cavity-QED-based quantum phase gate  

E-Print Network [OSTI]

are detuned by an amount D from the cavity mode 1, i.e., vbc5n11D . A quantum phase gate with a p phase shift is implemented if the atom in its ground state uc& passes through the cavity such that ~1! the detuning D is equal to g2, and ~2! the interaction...- lowing. The effective Hamiltonian for the interaction, in the di- pole and rotating-wave approximations, is H5H01H1 , ~3! where H05\

Zubairy, M. Suhail; Kim, M.; Scully, Marlan O.

2003-01-01T23:59:59.000Z

91

Optical AND and NOT gates at 40 Gbps using electro-absorption modulator/photodiode pairs.  

SciTech Connect (OSTI)

We demonstrate an optical gate architecture using electro-absorption modulator/photodiode pairs to perform AND and NOT functions. Optical bandwidth for both gates reach 40 GHz. Also shown are AND gate waveforms at 40 Gbps.

Tauke-Pedretti, Anna; Overberg, Mark E.; Skogen, Erik J.; Alford, Charles Fred; Sullivan, Charles Thomas; Vawter, Gregory Allen; Peake, Gregory Merwin; Torres, David L.

2010-06-01T23:59:59.000Z

92

Modeling gated neutron images of THD capsules  

SciTech Connect (OSTI)

Time gating a neutron detector 28m from a NIF implosion can produce images at different energies. The brighter image near 14 MeV reflects the size and symmetry of the capsule 'hot spot'. Scattered neutrons, {approx}9.5-13 MeV, reflect the size and symmetry of colder, denser fuel, but with only {approx}1-7% of the neutrons. The gated detector records both the scattered neutron image, and, to a good approximation, an attenuated copy of the primary image left by scintillator decay. By modeling the imaging system the energy band for the scattered neutron image (10-12 MeV) can be chosen, trading off the decayed primary image and the decrease of scattered image brightness with energy. Modeling light decay from EJ399, BC422, BCF99-55, Xylene, DPAC-30, and Liquid A leads to a preference from BCF99-55 for the first NIF detector, but DPAC 30 and Liquid A would be preferred if incorporated into a system. Measurement of the delayed light from the NIF scintillator using implosions at the Omega laser shows BCF99-55 to be a good choice for down-scattered imaging at 28m.

Wilson, Douglas Carl [Los Alamos National Laboratory; Grim, Gary P [Los Alamos National Laboratory; Tregillis, Ian L [Los Alamos National Laboratory; Wilke, Mark D [Los Alamos National Laboratory; Morgan, George L [Los Alamos National Laboratory; Loomis, Eric N [Los Alamos National Laboratory; Wilde, Carl H [Los Alamos National Laboratory; Oertel, John A [Los Alamos National Laboratory; Fatherley, Valerie E [Los Alamos National Laboratory; Clark, David D [Los Alamos National Laboratory; Schmitt, Mark J [Los Alamos National Laboratory; Merrill, Frank E [Los Alamos National Laboratory; Wang, Tai - Sen F [Los Alamos National Laboratory; Danly, Christopher R [Los Alamos National Laboratory; Batha, Steven H [Los Alamos National Laboratory; Patel, M [LLNL; Sepke, S [LLNL; Hatarik, R [LLNL; Fittinghoff, D [LLNL; Bower, D [LLNL; Marinak, M [LLNL; Munro, D [LLNL; Moran, M [LLNL; Hilko, R [NSTEC; Frank, M [LLNL; Buckles, R [NSTEC

2010-01-01T23:59:59.000Z

93

A p-cell approach to integer gate sizing  

E-Print Network [OSTI]

cell (p-cell) approach to the generation of layouts of standard gates is presented. The use of constant delay model for gate delay estimation is proposed which eliminates the need for maintaining huge volumes of delay tables in the standard cell library...

Doddannagari, Uday

2009-05-15T23:59:59.000Z

94

A SIMULATION MODEL FOR FLOATING-GATE MOS SYNAPSE TRANSISTORS  

E-Print Network [OSTI]

A SIMULATION MODEL FOR FLOATING-GATE MOS SYNAPSE TRANSISTORS Kambiz Rahimi, Chris Diorio, Cecilia, Seattle, Washington ABSTRACT We propose an empirical simulation model for p-channel floating-gate MOS and accurate simulation model for the synaptic devices, many of these circuits were designed using equation

Diorio, Chris

95

Acoustic sounding of the tropical marine boundary layer during GATE  

Science Journals Connector (OSTI)

A vertically pointed monostatic acoustic sounder was installed on the NOAA ShipOCEANOGRAPHER during the Global Atmospheric Research Program Atlantic Tropical Experiment (GATE). The sounderantenna was mounted on a gyrocontrolled platform to compensate for the ship'spitch and roll motions. Extensive measures such as mounting the antenna assembly on a vibration isolator and installing absorbing cuffs had to be taken to reduce interference by ship?generated noise. Back?scattered acoustic data obtained from up to 850 m height describe the tropical marine boundary layer in unique and hitherto unseen detail. During undisturbed weather conditions the facsimile record showed convective plumes rising from the surface of the water up to 400 m. Storm?generated disturbances resulted in a substantial modification of the boundary layer; low?level multilayered undulating inversions formed from cool outflow currents. The inversions persisted for up to 16 hours. Low?level patchy cumulus clouds produced characteristic hummock?shaped acoustic echoes. Analysis of the Doppler frequency shift of the returns allowed the determination of vertical velocities within these clouds and underlying convective plumes.

P. A. Mandics; J. E. Gaynor; F. F. Hall Jr.

1976-01-01T23:59:59.000Z

96

E-Print Network 3.0 - aluminum oxide gate Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Charge Trapping Characteristics of SONOS Capacitors with Control Gates of Different Work Functions during ProgramErase Operations Summary: ABSTRACT The control gate...

97

Paying the Toll: A Political History of the Golden Gate Bridge and Highway District, 1923-1971  

E-Print Network [OSTI]

Final Environmental Statement Golden Gate Bridge, HighwayGolden Gate Bridge Highway and Transportation District, Draft Environmental

Dyble, Amy Louise Nelson

2003-01-01T23:59:59.000Z

98

Point Counter Point UAR Codons for Glutamine  

E-Print Network [OSTI]

as a result of this event rather than by AT or GC pressure'' (em- phasis added). Our proposal for UAR University of California, Berkeley 6701 San Pablo Avenue Oakland, CA 94608, USA S. Osawa Biohistory Research:207­208 © Springer-Verlag New York Inc. 1997 #12;edly in the literature (Osawa and Jukes 1989; Osawa et al. 1992

Keeling, Patrick

99

System for pressure letdown of abrasive slurries  

DOE Patents [OSTI]

A system and method for releasing erosive slurries from containment at high pressure without subjecting valves to highly erosive slurry flow. The system includes a pressure letdown tank disposed below the high-pressure tank, the two tanks being connected by a valved line communicating the gas phases and a line having a valve and choke for a transfer of liquid into the letdown tank. The letdown tank has a valved gas vent and a valved outlet line for release of liquid. In operation, the gas transfer line is opened to equalize pressure between tanks so that a low level of liquid flow occurs. The letdown tank is then vented, creating a high-pressure differential between the tanks. At this point, flow between tanks is controlled by the choke. High-velocity, erosive flow through a high-pressure outlet valve is prevented by equalizing the start up pressure and thereafter limiting flow with the choke.

Kasper, Stanley (Pittsburgh, PA)

1991-01-01T23:59:59.000Z

100

Metal-gate-induced reduction of the interfacial layer in Hf oxide gate stacks  

SciTech Connect (OSTI)

The properties of high-{kappa} metal oxide gate stacks are often determined in the final processing steps following dielectric deposition. We report here results from medium energy ion scattering and x-ray photoelectron spectroscopy studies of oxygen and silicon diffusion and interfacial layer reactions in multilayer gate stacks. Our results show that Ti metallization of HfO{sub 2}/SiO{sub 2}/Si stacks reduces the SiO{sub 2} interlayer and (to a more limited extent) the HfO{sub 2} layer. We find that Si atoms initially present in the interfacial SiO{sub 2} layer incorporate into the bottom of the high-{kappa} layer. Some evidence for Ti-Si interdiffusion through the high-{kappa} film in the presence of a Ti gate in the crystalline HfO{sub 2} films is also reported. This diffusion is likely to be related to defects in crystalline HfO{sub 2} films, such as grain boundaries. High-resolution transmission electron microscopy and corresponding electron energy loss spectroscopy scans show aggressive Ti-Si intermixing and oxygen diffusion to the outermost Ti layer, given high enough annealing temperature. Thermodynamic calculations show that the driving forces exist for some of the observed diffusion processes.

Goncharova, L. V.; Dalponte, M.; Gustafsson, T.; Celik, O.; Garfunkel, E.; Lysaght, P. S.; Bersuker, G. [Department of Physics and Astronomy, and Laboratory for Surface Modification, Rutgers University, 136 Frelinghuysen Rd., Piscataway, New Jersey 08854 (United States); Department of Chemistry and Chemical Biology, and Laboratory for Surface Modification, Rutgers University, 610 Taylor Rd., Piscataway, New Jersey 08854 (United States); SEMATECH, 2705 Montopolis Dr., Austin, Texas 78741 (United States)

2007-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Interaction between Injection Points during Hydraulic Fracturing  

E-Print Network [OSTI]

We present a model of the hydraulic fracturing of heterogeneous poroelastic media. The formalism is an effective continuum model that captures the coupled dynamics of the fluid pressure and the fractured rock matrix and models both the tensile and shear failure of the rock. As an application of the formalism, we study the geomechanical stress interaction between two injection points during hydraulic fracturing (hydrofracking) and how this interaction influences the fracturing process. For injection points that are separated by less than a critical correlation length, we find that the fracturing process around each point is strongly correlated with the position of the neighboring point. The magnitude of the correlation length depends on the degree of heterogeneity of the rock and is on the order of 30-45 m for rocks with low permeabilities. In the strongly correlated regime, we predict a novel effective fracture-force that attracts the fractures toward the neighboring injection point.

Hals, Kjetil M D

2012-01-01T23:59:59.000Z

102

Wave represents displacement Wave represents pressure Source -Sound Waves  

E-Print Network [OSTI]

Wave represents displacement Wave represents pressure Source - Sound Waves Distance between crests is wavelength Number of crests passing a point in 1 second is frequency Wave represents pressure Target - Radio Waves Distance between crests is wavelength Number of crests passing a point in 1 second is frequency

Colorado at Boulder, University of

103

Respiration Induced Heart Motion and Indications of Gated Delivery for Left-Sided Breast Irradiation  

SciTech Connect (OSTI)

Purpose: To investigate respiration-induced heart motion for left-sided breast irradiation using a four-dimensional computed tomography (4DCT) technique and to determine novel indications to assess heart motion and identify breast patients who may benefit from a gated treatment. Methods and Materials: Images of 4DCT acquired during free breathing for 20 left-sided breast cancer patients, who underwent whole breast irradiation with or without regional nodal irradiation, were analyzed retrospectively. Dose distributions were reconstructed in the phases of 0%, 20%, and 50%. The intrafractional heart displacement was measured in three selected transverse CT slices using D{sub LAD} (the distance from left ascending aorta to a fixed line [connecting middle point of sternum and the body] drawn on each slice) and maximum heart depth (MHD, the distance of the forefront of the heart to the line). Linear regression analysis was used to correlate these indices with mean heart dose and heart dose volume at different breathing phases. Results: Respiration-induced heart displacement resulted in observable variations in dose delivered to the heart. During a normal free-breathing cycle, heart-induced motion D{sub LAD} and MHD changed up to 9 and 11 mm respectively, resulting in up to 38% and 39% increases of mean doses and V{sub 25.2} for the heart. MHD and D{sub LAD} were positively correlated with mean heart dose and heart dose volume. Respiratory-adapted gated treatment may better spare heart and ipsilateral-lung compared with the conventional non-gated plan in a subset of patients with large D{sub LAD} or MHD variations. Conclusion: Proposed indices offer novel assessment of heart displacement based on 4DCT images. MHD and D{sub LAD} can be used independently or jointly as selection criteria for respiratory gating procedure before treatment planning. Patients with great intrafractional MHD variations or tumor(s) close to the diaphragm may particularly benefit from the gated treatment.

Qi, X. Sharon, E-mail: xiangrong.qi@ucdenver.edu [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Hu, Angela [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Wang Kai [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States); Newman, Francis [Department of Radiation Oncology, University of Colorado Denver, Aurora, CO (United States); Crosby, Marcus; Hu Bin; White, Julia; Li, X. Allen [Department of Radiation Oncology, Medical College of Wisconsin, Milwaukee, WI (United States)

2012-04-01T23:59:59.000Z

104

ARM - Point Reyes News  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Experiment Planning MASRAD Proposal Abstract and Related Campaigns Outreach Posters Climate Research at Point Reyes National Seashore (horizontal) Climate Research at...

105

Contemporary Trends power point  

E-Print Network [OSTI]

Power point slides guiding presentation on closing the gap between political acceptability and administrative sustainability as a prerequisite for effective governance. Leadership challenges are described

Nalbandian, John

2013-02-01T23:59:59.000Z

106

Micro-mechanical logic for field produceable gate arrays  

E-Print Network [OSTI]

A paradigm of micro-mechanical gates for field produceable logic is explored. A desktop manufacturing system is sought after which is capable of printing functional logic devices in the field. A logic scheme which induces ...

Prakash, Manu

2005-01-01T23:59:59.000Z

107

On the Query Complexity of Perfect Gate Discrimination  

E-Print Network [OSTI]

On the Query Complexity of Perfect Gate Discrimination Giulio Chiribella1 , Giacomo Mauro D'Ariano2 queries are called at different time steps [5]. T Q C © Giulio Chiribella, Giacomo Mauro D

D'Ariano, Giacomo Mauro

108

How many copies are needed for gate discrimination?  

E-Print Network [OSTI]

How many copies are needed for gate discrimination? Giulio Chiribella1 , Giacomo Mauro D'Ariano2 Chiribella, Giacomo Mauro D'Ariano, and Martin Roetteler; licensed under Creative Commons License

D'Ariano, Giacomo Mauro

109

Parameter Mismatches, Chaos Synchronization and Fast Dynamic Logic Gates  

E-Print Network [OSTI]

By using chaos synchronization between non-identical multiple time delay semiconductor lasers with optoelectronic feedbacks, we demonstrate numerically how fast dynamic logic gates can be constructed. The results may be helpful to obtain a computational hardware with reconfigurable properties.

E. M. Shahverdiev

2009-07-02T23:59:59.000Z

110

Electrical resistance of Manganin under high static pressures  

Science Journals Connector (OSTI)

The electrical resistance of manganin was measured under pressures up to 220 kbar at room temperature. The pressure was produced by means of a multianvil apparatus using semisintered magnesia for the pressure medium and was calibrated against well?known fixed points. Obtained results show a linear relationship between the resistance and pressure up to 180 kbar with good reproducibility. The pressure coefficient of resistance turns out to be (2.3220.008) 10?3 kbar?1 which is in close agreement with the value obtained under hydrostatic conditions. Manganin can be satisfactorily used as a pressure gauge for a high?pressure experiment using a solidpressure medium. The deviation from the linearity observed above 180 kbar is ascribed to either an intrinsic property of Manganin or the uncertainty of the fixed point adopted. If the linearity is assumed above 180 kbar the transition pressure of GaP is estimated to be 2062 kbar.

N. Fujioka; O. Mishima; S. Endo; N. Kawai

1978-01-01T23:59:59.000Z

111

Single-Step Implementation of Universal Quantum Gates  

SciTech Connect (OSTI)

We construct optimized implementations of the controlled-NOT and other universal two-qubit gates that, unlike many of the previously proposed protocols, are carried out in a single step. The new protocols require tunable interqubit couplings but, in return, show a significant improvement in the quality of gate operations. We make specific predictions for coupled Josephson junction qubits and compare them with the results of recent experiments.

Grigorenko, I.A.; Khveshchenko, D.V. [Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27599 (United States)

2005-09-09T23:59:59.000Z

112

Self-aligned submicron gate length gallium arsenide MESFET  

E-Print Network [OSTI]

SELF-ALIGNED SUBMICRON GATE LENGTH GALLIUM ARSENIDE MESFET A Thesis by HSIEN-CHING HUANG Submitted to the Graduate College of Texas ASSAM University in partial fulfillment of the requirement for the degree ol' MASTER OF SCIENCE May 1987... Major Subject: Electrical Engineering SELF-ALIGNED SUBMICRON GATE LENGTH GALLIUM ARSENIDE MESFET A Thesis by HSIEN-CHING HUANG Approved as to style and content by: Mark. H. Weichold (Chairman of Committee) Donald L. Parker (Member) dali L...

Huang, Hsien-Ching

2012-06-07T23:59:59.000Z

113

Ultrafast gating of proximity-focused microchannel-plate intensifiers  

SciTech Connect (OSTI)

Proximity-focused, microchannel-plate (MCP) image intensifiers have been used at Los Alamos for many years to allow single frame film and video exposure times in the range of 2.5 to 10 ns. There is now a program to reduce gating times to < 1 ns. This paper reviews previous work and the problems in achieving good resolution with gating times of < 1 ns. The key problems involve applying fast electrical gating signals to the tube elements. We present computer modeling studies of the combined tube, tube connection, and pulser system and show that low photocathode surface resistivity must be obtained to permit fast gating between the photocathode and the MCP input. We discuss ways of making low-resistivity S20 photocathodes, using gallium arsenide photocathodes, and various means of gating the tubes. A variety of pulser designs are being experimentally evaluated including spark gaps, avalanche transistors, Krytron tubes with sharpening gaps, step recovery diodes, and photoconductive elements (PCEs). The results of these studies are presented. Because of the high capacitances involved in most gating schemes, the tube connection geometry must be of low-impedance design, and our solution is presented. Finally, ways of testing these high-speed camera systems are discussed.

Lundy, A.S.; Iverson, A.E.

1982-01-01T23:59:59.000Z

114

CHARGED POINT DEFECT IN RUTILE TIO2:FROM DEFECT CHARGE DISTRIBUTION TO DEFECT PHONON FREE ENERGY.  

E-Print Network [OSTI]

??The dominant charged point defects in transition metal oxides can change with temperature (T) and oxygen partial pressure (PO2) to control the electrical properties of (more)

Li, Xin

2010-01-01T23:59:59.000Z

115

Overview o floating point  

E-Print Network [OSTI]

condition codes and branches are same as for single-precision o absolute value and negation can Co-processor o Integer, BCD, and floating point representations o floating point have sign instructions) or even popped twice (FCOMPP) o tests set condition codes: - C0: less or unordered

Biagioni, Edoardo S.

116

Point-Based Graphics  

Science Journals Connector (OSTI)

The polygon-mesh approach to 3D modeling was a huge advance, but today its limitations are clear. Longer render times for increasingly complex images effectively cap image complexity, or else stretch budgets and schedules to the breaking point. Point-based ... Keywords: Computer Graphics, Computers

Markus Gross; Hanspeter Pfister

2007-06-01T23:59:59.000Z

117

Accelerometer-Based method for extracting respiratory and cardiac gating information for dual gating during nuclear medicine imaging  

Science Journals Connector (OSTI)

Both respiratory and cardiac motions reduce the quality and consistency of medical imaging specifically in nuclear medicine imaging. Motion artifacts can be eliminated by gating the image acquisition based on the respiratory phase and cardiac contractions ...

Mojtaba Jafari Tadi, Tero Koivisto, Mikko Pnkl, Ari Paasio

2014-01-01T23:59:59.000Z

118

Point-contact spectroscopy  

Science Journals Connector (OSTI)

Micro-contacts between metals at low temperatures reveal non-linear structures in the current-voltage characteristics. These deviations from Ohm's law allow an energy-resolved spectroscopy of the interaction of the conduction electrons with elementary excitations (e.g. phonons) in a metal. To explain the method, the important parameters (electron mean free path versus contact dimension) in point-contact spectroscopy will be discussed together with examples of spectroscopic information obtained in various systems. Local temperature gradients in the contact region offer the possibility to study thermo-electric phenomena in small constrictions, such as thermal voltages in non-homogeneous contacts and quenching of the phonon-drag term in the thermo-power in homogeneous contacts. Besides these aspects of the point-contact technique, recent experiments will be shown with applications of point contacts other than just spectroscopy: magneto-resistance of a point contact, high-frequency rectification with a point contact as the non-linear element, electron focusing using a double point-contact set-up, electrical noise in constrictions and generation of phonons by means of point contacts.

A M Duif; A G M Jansen; P Wyder

1989-01-01T23:59:59.000Z

119

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Combined Pressure and Temperature Contrast and Combined Pressure and Temperature Contrast and Surface-enhanced Separation of Carbon-dioxide for Post-combustion Carbon Capture Dr. Michael S. Wong Professor in Chemical and Biomolecular Engineering, Chemistry and Environmental Engineering Rice University NETL CO 2 Capture Technology Meeting July 10 th , 2013 DOE Project # DE0007531 Project Manager: Ms. Elaine Everitt Outline * About Rice University * Project Overview * Project Team * Combined Pressure and Temperature Contrast and Surface- enhanced Separation of Carbon-dioxide * Selection of materials * Integrated absorber and stripper - A proof-of-concept demonstration * Substrate functionalization * Project Budget 2 * Located in Houston, TX * 295-acre, heavily wooded campus * Ranked 17 th in the US and in the

120

Wafer-scale solution-derived molecular gate dielectrics for low-voltage graphene electronics  

SciTech Connect (OSTI)

Graphene field-effect transistors are integrated with solution-processed multilayer hybrid organic-inorganic self-assembled nanodielectrics (SANDs). The resulting devices exhibit low-operating voltage (2?V), negligible hysteresis, current saturation with intrinsic gain >1.0 in vacuum (pressure?gate dielectrics. Statistical analysis of the field-effect mobility and residual carrier concentration demonstrate high spatial uniformity of the dielectric interfacial properties and graphene transistor characteristics over full 3 in. wafers. This work thus establishes SANDs as an effective platform for large-area, high-performance graphene electronics.

Sangwan, Vinod K.; Jariwala, Deep; McMorrow, Julian J.; He, Jianting; Lauhon, Lincoln J. [Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (United States); Everaerts, Ken [Department of Chemistry, Northwestern University, Evanston, Illinois 60208 (United States); Grayson, Matthew [Department of Electrical Engineering and Computer Science, Northwestern University, Evanston, Illinois 60208 (United States); Marks, Tobin J., E-mail: t-marks@northwestern.edu, E-mail: m-hersam@northwestern.edu; Hersam, Mark C., E-mail: t-marks@northwestern.edu, E-mail: m-hersam@northwestern.edu [Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208 (United States); Department of Chemistry, Northwestern University, Evanston, Illinois 60208 (United States)

2014-02-24T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

PressurePressure Indiana Coal Characteristics  

E-Print Network [OSTI]

TimeTime PressurePressure · Indiana Coal Characteristics · Indiana Coals for Coke · Coal Indiana Total Consumption Electricity 59,664 Coke 4,716 Industrial 3,493 Major Coal- red power plantsTransportation in Indiana · Coal Slurry Ponds Evaluation · Site Selection for Coal Gasification · Coal-To-Liquids Study, CTL

Fernández-Juricic, Esteban

122

Strategic Focus Points  

Broader source: Energy.gov (indexed) [DOE]

Focus Points Focus Points June 2011 1. Establish the human capital and organizational foundation to create a high-performing organization. 2. Implement a cyber risk-management and incident response program that ensures effective security of Federal and M&O networks, provides appropriate flexibility, and meets legal requirements and OMB expectations. 3. Improve IT Services (EITS) into a best-in-class provider from both a technical and business perspective. 4. Implement and institutionalize a reformed, integrated information management governance process that respects the goal to treat M&Os distinctively different than true Federal entities. 5. Transition to 5-year planning and programming, using the NNSA Planning, Programming, Budgeting and Evaluation (PPBE) process as a starting point to include resource and requirements validation.

123

Improving Floating Point Compression  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Improving Improving Floating Point Compression through Binary Masks Leonardo A. Bautista Gomez Argonne National Laboratory Franck Cappello Argonne National Laboratory Abstract-Modern scientific technology such as particle accel- erators, telescopes and supercomputers are producing extremely large amounts of data. That scientific data needs to be processed using systems with high computational capabilities such as supercomputers. Given that the scientific data is increasing in size at an exponential rate, storing and accessing the data is becoming expensive in both, time and space. Most of this scientific data is stored using floating point representation. Scientific applications executed in supercomputers spend a large amount of CPU cycles reading and writing floating point values, making data compression techniques an interesting way to increase computing efficiency.

124

Ligand-gated Diffusion Across the Bacterial Outer Membrane  

SciTech Connect (OSTI)

Ligand-gated channels, in which a substrate transport pathway is formed as a result of the binding of a small-molecule chemical messenger, constitute a diverse class of membrane proteins with important functions in prokaryotic and eukaryotic organisms. Despite their widespread nature, no ligand-gated channels have yet been found within the outer membrane (OM) of Gram-negative bacteria. Here we show, using in vivo transport assays, intrinsic tryptophan fluorescence and X-ray crystallography, that high-affinity (submicromolar) substrate binding to the OM long-chain fatty acid transporter FadL from Escherichia coli causes conformational changes in the N terminus that open up a channel for substrate diffusion. The OM long-chain fatty acid transporter FadL from E. coli is a unique paradigm for OM diffusion-driven transport, in which ligand gating within a {beta}-barrel membrane protein is a prerequisite for channel formation.

B Lepore; M Indic; H Pham; E Hearn; D Patel; B van den Berg

2011-12-31T23:59:59.000Z

125

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Maine Yankee Reactor Vessel Maine Yankee Reactor Vessel Removal & Barge Transport U.S. Department of Energy TEC Working Group April 4-5, 2005 Phoenix, Arizona Ted Feigenbaum Maine Yankee President & CEO The Maine Yankee Reactor Pressure Vessel Project Ingredients for Success Solid Planning + Flawless Implementation + Extensive Communication = . . . Success The reactor pressure vessel (RPV) internals, before segmentation. 2001 The segmented RPV internals. 2001 The arrival of the RPV shipping container cover at Maine Yankee. May 2001 Vessel lift from Containment for transfer to the shipping container. August 2002 Vessel transfer to the shipping container. August 2002 The empty RPV shipping container and skid in the back yard. 2001 The shipping container, staged in the Containment

126

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Surface Deformation at Surface Deformation at an Enhanced Oil Recovery Site Tim Dixon University of South Florida Tampa, Florida Surface Deformation - Background * Surface deformation (eg measured by GPS or InSAR) is sensitive to pressure changes in the reservoir at depth * Potentially useful as a low cost tool for monitoring, verification, accounting for CO2 injection and storage (non-invasive) * Surrogate for downhole pressure monitoring? * Challenge - separating signal from a variety of noise sources Study Site: Hastings, Texas Deformation sources in the Gulf Coast * CO2 or saline water injection, oil extraction at the site of interest * Regional ground water table variation associated with wet/dry season * Local ground water variation due to pumping * Extraction of oil, natural gas from adjacent

127

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Oxidation of SiC/BN/SiC Composites in Oxidation of SiC/BN/SiC Composites in Reduced Oxygen Partial Pressures Elizabeth Opila, Department of Materials Science, University of Virginia, Charlottesville, VA Meredith Boyd, Department of Chemical Engineering, University of Rochester, Rochester, NY Motivation Technical challenge for hypersonic vehicles: Develop lightweight, durable, reusable, 3000°F (1650C) structurally-integrated Thermal Protection Systems (TPS) to carry both thermal and mechanical loads using ceramic matrix composite materials Objectives * Characterize the oxidation resistance of BN-coated SiC fiber- reinforced SiC composites at temperatures and oxygen partial pressures relevant for hypersonic environments * Develop understanding of oxidation degradation kinetics and

128

Sensory gating in intracranial recordings The role of phase locking  

Science Journals Connector (OSTI)

For patients with schizophrenia, a deficient gating (or filtering) of sensory input has been described. One major approach to study this sensory gating is to measure event-related potentials (ERPs) in response to paired clicks. In these experiments, sensory gating is quantified as amplitude reduction of the ERP components P50 and N100 from the 1st to the 2nd stimulus. In ERP studies brain electrical signals are averaged over single trials. Alterations in phase locking might be one factor contributing to the observed deficits in sensory gating, but findings have been inconclusive as yet. In particular, the contribution of different frequency bands to the deficit required further investigation. We studied N100 gating by intracranial recordings in a sample of epilepsy patients and subdivided the group into good and poor gators of the intracranial ERP component N100. Data were evaluated by frequency specific wavelet-based phase and power analyses. Poor N100 gators had an increased phase locking in the frequency range from 6.015.1Hz after the 2nd stimulus, as compared to good gators. Other group differences were apparent already before the 2nd stimulus. Poor gators had less phase locked beta band activity (20.230.0Hz) than good gators 200315ms after the onset of the 1st stimulus. Within the group of poor gators, lower values of phase locking in this frequency range were also associated with lower gating ratios. The reduced beta band response in response to the 1st stimulus may reflect poorer memory encoding of the 1st stimulus in poor gators. This in turn might lead to increased demands to process the 2nd stimulus.

Timm Rosburg; Peter Trautner; Jrgen Fell; Karen Anne Moxon; Christian E. Elger; Nash N. Boutros

2009-01-01T23:59:59.000Z

129

On the Role of Hadamard Gates in Quantum Circuits  

E-Print Network [OSTI]

We study a reduced quantum circuit computation paradigm in which the only allowable gates either permute the computational basis states or else apply a "global Hadamard operation", i.e. apply a Hadamard operation to every qubit simultaneously. In this model, we discuss complexity bounds (lower-bounding the number of global Hadamard operations) for common quantum algorithms : we illustrate upper bounds for Shor's Algorithm, and prove lower bounds for Grover's Algorithm. We also use our formalism to display a gate that is neither quantum-universal nor classically simulable, on the assumption that Integer Factoring is not in BPP.

Dan Shepherd

2005-08-22T23:59:59.000Z

130

February 2013 Point Sheets  

E-Print Network [OSTI]

February 2013 MPTs and Point Sheets National Conference of Bar Examiners 302 South Bedford Street)...............................................30 LIBRARY Excerpts from the Indian Child Welfare Act of 1978, 25 U.S.C. §§ 1901 et seq...................33 Department of the Interior, Bureau of Indian Affairs, Guidelines for State Courts; Indian Child Custody

Marsh, David

131

MYSTERY OF POINT CHARGES  

E-Print Network [OSTI]

for more general potentials and dynamical systems are obtained in [9]. ..... with a suitable multiple of Q: this operation does not change common zeros of Q ...... Terao [16] on the number of critical points for the product of powers of real linear .... J.E.Goodman and J. O'Rourke eds.,Handbook of discrete and computational...

2006-06-12T23:59:59.000Z

132

SETTLEMENT POINTS Congo, Democra  

E-Print Network [OSTI]

! ! ! ! ( ( ( ( ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ( ( ( ( ( (( ( ( ( ( ( ( ( ( (!( Botswana Congo, Democra Congo Namibia Zambia GRUMPv1 A t l a n t i c O c e a n ´ 0 250 500 Km Lambert. Available at:http://sedac.ciesin.columbia.edu/gpw/ Democratic Republic of Congo Settlement Points

Columbia University

133

Zirconium-doped tantalum oxide high-k gate dielectric films  

E-Print Network [OSTI]

layer formation and properties were studied with or without an inserted thin tantalum nitride (TaNx) layer. The gate electrode material influence on the dielectric properties was also investigated. Four types of gate materials, i.e., aluminum (Al...

Tewg, Jun-Yen

2005-02-17T23:59:59.000Z

134

Realizing Three-Qubit Quantum-Gate Operation in a Cavity-QED System  

Science Journals Connector (OSTI)

Three-qubit quantum phase-gate and C2-NOT gate realization in a cavity-QED system is proposed where highly detuned field modes interact with a four-level system in an...

Joshi, Amitabh; Xiao, Min

135

Deep gates of a new design for closure of diversion tunnels  

Science Journals Connector (OSTI)

1. The discussed gate has a number of merits: the absence of deformation of the stream (except for deformation w...

P. R. Khlopenkov

1968-02-01T23:59:59.000Z

136

Pressure reducing regulator  

DOE Patents [OSTI]

A pressure reducing regulator that controls its downstream or outlet pressure to a fixed fraction of its upstream or inlet pressure is disclosed. The regulator includes a housing which may be of a titanium alloy, within which is located a seal or gasket at the outlet end which may be made of annealed copper, a rod, and piston, each of which may be made of high density graphite. The regulator is insensitive to temperature by virtue of being without a spring or gas sealed behind a diaphragm, and provides a reference for a system in which it is being used. The rod and piston of the regulator are constructed, for example, to have a 1/20 ratio such that when the downstream pressure is less than 1/20 of the upstream pressure the regulator opens and when the downstream pressure exceeds 1/20 of the upstream pressure the regulator closes. 10 figs.

Whitehead, J.C.; Dilgard, L.W.

1995-10-10T23:59:59.000Z

137

Power and thermal effects of SRAM vs. Latch-Mux design styles and clock gating choices  

Science Journals Connector (OSTI)

This paper studies the impact on energy efficiency and thermal behavior of design style and clock-gating style in queue and array structures. These structures are major sources of power dissipation, and both design styles and various clock gating schemes ... Keywords: architecture, clock gating, power, temperature

Yingmin Li; Mark Hempstead; Patrick Mauro; David Brooks; Zhigang Hu; Kevin Skadron

2005-08-01T23:59:59.000Z

138

Geometric phase gate on an optical transition for ion trap quantum computation C. F. Roos,2  

E-Print Network [OSTI]

Geometric phase gate on an optical transition for ion trap quantum computation K. Kim,1 C. F. Roos We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates mediated by electric

Blatt, Rainer

139

Steric Gate Variants of UmuC Confer UV Hypersensitivity on Escherichia coli  

Science Journals Connector (OSTI)

...on survival. FIG. 1. The steric gate residue of UmuC is predicted to approach...blue), and residues F10 and steric gate Y11 (red). The backbone of UmuC is shown...Homo sapiens. FIG. 2. The steric gate Y11 and F10 variants in UmuC cause...

Brenna W. Shurtleff; Jaylene N. Ollivierre; Mohammad Tehrani; Graham C. Walker; Penny J. Beuning

2009-05-29T23:59:59.000Z

140

Simple Template-Based Method to Produce Bradbury-Nielsen Gates  

E-Print Network [OSTI]

ARTICLES Simple Template-Based Method to Produce Bradbury-Nielsen Gates Oh Kyu Yoon, Ignacio A University, Stanford, California, USA A Bradbury-Nielsen gate (BNG) consists of two interleaved as a Bradbury-Nielsen gate (BNG), which consists of two interleaved and electrically isolated sets of wires

Zare, Richard N.

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

Nanometer scale linewidth control during etching of polysilicon gates in high-density plasmas  

Science Journals Connector (OSTI)

We address some of the plasma issues encountered for ultimate silicon gate patterning that should be fixed in order to establish the long term viability of plasma processes in integrated circuits manufacturing. For sub-100-nm gate dimensions, one of ... Keywords: CMOS scaling, critical dimension control, gate patterning, plasma etching

O. Joubert; E. Pargon; J. Foucher; X. Detter; G. Cunge; L. Vallier

2003-09-01T23:59:59.000Z

142

Engineering Light-Gated Ion Channels Matthew R. Banghart, Matthew Volgraf, and Dirk Trauner*  

E-Print Network [OSTI]

Engineering Light-Gated Ion Channels Matthew R. Banghart, Matthew Volgraf, and Dirk Trauner covers the molecular principles that guide the engineering of light-gated ion channels for applicationsVised Manuscript ReceiVed NoVember 6, 2006 ABSTRACT: Ion channels are gated by a variety of stimuli, including

Trauner, Dirk

143

Case Studies on Clock Gating and Local Routign for VLSI Clock Mesh  

E-Print Network [OSTI]

. This thesis deals with the introduction of 'reconfigurability' by using control structures like transmission gates between sub-clock meshes, thus enabling clock gating in clock mesh. By using the optimum value of size for PMOS and NMOS of transmission gate...

Ramakrishnan, Sundararajan

2010-10-12T23:59:59.000Z

144

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Budget and TYCP Process Budget and TYCP Process Discussion Bob Harris UGP Regional Manager and PM 1 Preliminary 10-Year Capital Budget/Funding Establish Programmatic Asset Management/Capital Funding Process Asset Management Customer Networking Sustainable Funding Discussion Utilize Programmatic Asset Management/Capital Funding AMPIP WESTERN'S ROADMAP ROBUST ASSET MANAGEMENT PROGRAM/WESTERN-WIDE CAPITAL BUDGET 2013 2014 NOV MAY ... ... ... 2 Rates Presentation Jack Murray DSW Rates Manager 3 P-DP Rate Discussion * Transmission rates experiencing long-term upward pressure. * Cost of rebuilding aging infrastructure a key component responsible for potential rate increases. * As additional plant completed and placed in service, annual costs to service debt increase,

145

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Department of Energy Department of Energy Transportation External Working Group (TEC) EDWARDS MOVING & RIGGING, INC. Heavy Transport Presentation Presented By What kind of projects do we do? Heavy Transport Heavy Rigging Focus today is Heavy Transport Focus today is Heavy Transport Turbine Generator Transformer Boilers Vessel Press Bridge Duct work Railroad Engine Tank Relocation 440T Building Solid Masonry Even a building facade "These guys can move anything" Pressurizer RA Movement of Hazardous Cargo Major Plant Components & Casks Cask Movement Shipment by Road Shipment by Road Shipment by Railroad Shipments by Barge What makes Transport Contactors Suited for these projects? Complete Package *Engineering *Planning *State-of-the-art-equipment

146

Life cycle inventory for palm based plywood: A gate-to-gate case study  

Science Journals Connector (OSTI)

The oil palm industry heavily relies on the world market. It is essential to ensure that the oil palm industry is ready to meet the demands and expectation of these overseas customers on the environmental performance of the oil palm industry. Malaysia produces 13.9 million tons of oil palm biomass including oil palm trunk (OPT) frond and empty fruits bunches (EFB) annually. OPT felled in some oil palm plantations during replanting is transported to various industries and one such industry is the plywood factories. In order to gauge the environmental performance of the use of OPT as plywood a Life Cycle Assessment (LCA) study was conducted for palm based plywood. LCA is an important tool to assess the environmental performance of a product or process. Life cycle inventory (LCI) is the heart of a LCA study. This LCI study has a gate-to-gate system boundary and the functional unit is 1 m3 palm plywood produced and covers three types of plywood; Moisture Resistance Plywood (MR) Weather Boiling Proof Plywood Grade 1 (WBP Grade 1) at Factory D and Weather Boiling Proof Plywood Grade 2 (WBP Grade 2) at Factory E. Both factories use two different types of drying processes; conventional drying at Factory D and kiln drying at Factory E. This inventory data was collected from two factories (D and E) representing 40% of Malaysia palm plywood industry. The inputs are mainly the raw materials which are the oil palm trunks and tropical wood veneers and the energy from diesel and electricity from grid which is mainly used for the drying process. The other inputs include water urea formaldehyde phenol formaldehyde flour and melamine powder. The outputs are the biomass waste which consists of oil palm trunk off-cut and emission from boiler. Generally all types of plywood production use almost same materials and processing methods in different quantities. Due to the different process efficiency Factory D uses less input of raw materials and energy compared to Factory E.

Shamim Ahmad; Ismail Sahid; Vijaya Subramaniam; Halimah Muhamad; Anis Mokhtar

2013-01-01T23:59:59.000Z

147

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Coupling Between Oceanic Upwelling and Cloud Coupling Between Oceanic Upwelling and Cloud Coupling Between Oceanic Upwelling and Cloud - - Aerosol Properties Aerosol Properties at the AMF Point Reyes Site at the AMF Point Reyes Site Maureen Dunn , Mike Jensen , Pavlos Kollias , Mark Miller , Peter Daum Mary Jane Bartholomew , David Turner , Elisabeth Andrews and Anne Jefferson Introduction Ground based observations from the MASRAD, Pt. Reyes AMF July 1-Sept 15, 2005 indicate a relationship between coastal marine stratus cloud properties, boundary layer cloud condensation nuclei and the upwelling of cool oceanic waters measured at an offshore NOAA buoy. Cloud Drizzle to CCN Atmosphere to Cloud Upwelling SST to Atmosphere Conclusion Coastal marine stratus clouds increase in thickness as the underlying sea surface

148

EAMidnightPointMahogany  

Broader source: Energy.gov (indexed) [DOE]

Assessment Assessment Midnight Point and Mahogany Geothermal Exploration Projects, Glass Buttes, Oregon April 2013 Prepared By Bureau of Land Management - Prineville and Burns Districts DOI-BLM-OR-P040-2011-0021-EA DOE/EA-1925 Environmental Assessment Midnight Point and Mahogany Geothermal Exploration Projects, Glass Buttes, Oregon April 2013 Lead Agency United States Department of the Interior Bureau of Land Management Prineville District 3050 N.E. 3rd Street, Prineville, OR 97754 Tel: 541 416 6700 Burns District 28910 Hwy 20 West, Hines, OR 97738 Tel: 541 573 4400 Cooperating Agency United States Department of Energy Golden Field Office Golden, Colorado 80401 Tel: 720-356-1563 Fax: 720-356-1560 April 2013 Environmental Assessment Table of Contents 1

149

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Commercialization of the SuperOPF Commercialization of the SuperOPF Framework: Phase III (Theme: Co- optimization Stochastic SuperOPF- renewables) Performers: PSERC: Hsiao-Dong Chiang - LEAD Cornell University: Ray Zimmerman Bigwood Systems, Inc.: Patrick Causgrove, Bin Wang Phase I: 1.(support industrial model) A commercial-grade core SuperOPF software supporting various industrial-grade power system models such as (i) CIM-compliance; and (ii) PSS/E data format 2. A multi-stage OPF solver with adaptive homotopy-based Interior Point Method for large- scale power systems (PJM: 14,000-bus data) Bigwood Systems Inc., 2013 3 Results: Efficiency and Robustness (Analytical Jacobian matrices) Loading Conditions One-Staged Interior Point Method Multi-Staged Scheme 1 Succeeded Succeeded

150

TECH FORUM: [VERIFIED RTL TO GATES] Efficient RC power grid  

E-Print Network [OSTI]

TECH FORUM: [VERIFIED RTL TO GATES] Efficient RC power grid verification using node elimination proposes a novel approach to systematically reduce the power grid and accurately compute an upper bound on the voltage drops at power grid nodes that are retained. Furthermore, acriterion for the safety of nodes

Najm, Farid N.

151

Compressed sensing quantum process tomography for superconducting quantum gates  

E-Print Network [OSTI]

We apply the method of compressed sensing (CS) quantum process tomography (QPT) to characterize quantum gates based on superconducting Xmon and phase qubits. Using experimental data for a two-qubit controlled-Z gate, we obtain an estimate for the process matrix $\\chi$ with reasonably high fidelity compared to full QPT, but using a significantly reduced set of initial states and measurement configurations. We show that the CS method still works when the amount of used data is so small that the standard QPT would have an underdetermined system of equations. We also apply the CS method to the analysis of the three-qubit Toffoli gate with numerically added noise, and similarly show that the method works well for a substantially reduced set of data. For the CS calculations we use two different bases in which the process matrix $\\chi$ is approximately sparse, and show that the resulting estimates of the process matrices match each ther with reasonably high fidelity. For both two-qubit and three-qubit gates, we characterize the quantum process by not only its process matrix and fidelity, but also by the corresponding standard deviation, defined via variation of the state fidelity for different initial states.

Andrey V. Rodionov; Andrzej Veitia; R. Barends; J. Kelly; Daniel Sank; J. Wenner; John M. Martinis; Robert L. Kosut; Alexander N. Korotkov

2014-07-03T23:59:59.000Z

152

Quantification of Priority-OR gates in temporal fault trees  

Science Journals Connector (OSTI)

Fault Tree Analysis has been used in reliability engineering for many decades and has seen various modifications to enable it to analyse fault trees with dynamic and temporal gates so it can incorporate sequential failure in its analysis. Pandora is ... Keywords: Markov chains, Monte Carlo, Pandora, dynamic fault trees, fault trees, safety

Ernest Edifor; Martin Walker; Neil Gordon

2012-09-01T23:59:59.000Z

153

Quantum phase gate for optical qubits with cavity quantum optomechanics  

E-Print Network [OSTI]

We show that a cavity optomechanical system formed by a mechanical resonator simultaneously coupled to two modes of an optical cavity can be used for the implementation of quantum phase gate between optical qubits associated with the two intracavity modes. The scheme is realizable for sufficiently strong single-photon optomechanical coupling in the resolved sideband regime, and is robust against cavity losses.

Muhammad Asjad; Paolo Tombesi; David Vitali

2015-01-16T23:59:59.000Z

154

Design, Simulation and Modeling of Insulated Gate Bipolar Transistor  

E-Print Network [OSTI]

The market for Insulated Gate Bipolar Transistor (IGBT) is growing and there is a need for techniques to improve the design, modeling and simulation of IGBT. In this thesis, we first developed a new method to optimize the layout and dimensions...

Gupta, Kaustubh

2013-07-09T23:59:59.000Z

155

Advanced Gate Drive for the SNS High Voltage Converter Modulator  

SciTech Connect (OSTI)

SLAC National Accelerator Laboratory is developing a next generation H-bridge switch plate [1], a critical component of the SNS High Voltage Converter Modulator [2]. As part of that effort, a new IGBT gate driver has been developed. The drivers are an integral part of the switch plate, which are essential to ensuring fault-tolerant, high-performance operation of the modulator. The redesigned driver improves upon the existing gate drive in several ways. The new gate driver has improved fault detection and suppression capabilities; suppression of shoot-through and over-voltage conditions, monitoring of dI/dt and Vce(sat) for fast over-current detection and suppression, and redundant power isolation are some of the added features. In addition, triggering insertion delay is reduced by a factor of four compared to the existing driver. This paper details the design and performance of the new IGBT gate driver. A simplified schematic and description of the construction are included. The operation of the fast over-current detection circuits, active IGBT over-voltage protection circuit, shoot-through prevention circuitry, and control power isolation breakdown detection circuit are discussed.

Nguyen, M.N.; Burkhart, C.; Kemp, M.A.; /SLAC; Anderson, D.E.; /Oak Ridge

2009-05-07T23:59:59.000Z

156

Controlling attosecond electron dynamics by phase-stabilized polarization gating  

E-Print Network [OSTI]

LETTERS Controlling attosecond electron dynamics by phase-stabilized polarization gating I. J. SOLA the signature of a single return of the electron wavepacket over a large range of energies. This temporally (low energy) and cut-off (high energy) harmonics, specific focusing conditions ensure that only

Loss, Daniel

157

Optical gating of perylene bisimide fluorescence using dithienylcyclopentene photochromic switches  

SciTech Connect (OSTI)

The emission of millions of fluorescence photons from a chromophore is controlled by the absorption of a few tens of photons in a photochromic molecule. The parameters that determine the efficiency of this process are investigated, providing insights for the development of an all-optical gate.

Prs, Martti; Khler, Jrgen, E-mail: juergen.koehler@uni-bayreuth.de [Experimental Physics IV, University of Bayreuth, 95440 Bayreuth (Germany)] [Experimental Physics IV, University of Bayreuth, 95440 Bayreuth (Germany); Grf, Katja; Bauer, Peter; Thelakkat, Mukundan [Applied Functional Polymers, University of Bayreuth, 95440 Bayreuth (Germany)] [Applied Functional Polymers, University of Bayreuth, 95440 Bayreuth (Germany)

2013-11-25T23:59:59.000Z

158

Fabrication of gated nano electron source for vacuum nanoelectronics  

Science Journals Connector (OSTI)

Abstract Many kinds of attractive new applications, such as image sensors, stationary X-ray sources, and the column-less SEM, are investigated as post field emission displays that use a gated nano electron source. The fabrication of the gated nano electron source is overviewed from the conventional method to the latest one, especially in regarding to the gate formation process. Multi-stacked gate electrode formation using an etch-back method was developed recently, which is a very attractive method for generating a focused electron beam. The traditional Spindt-type emitter fabrication method is also being improved to the one that is easier and applicable to large area substrates. Using a double-layered photoresist as a lift-off layer and using HiPIMS sputtering instead of an e-beam evaporator was proposed. Thin film-type FEA fabrication is also improved to make vertically standing thin film by ion irradiation, which is applicable for making an emitter array on a large sized substrate.

Masayoshi Nagao; Tomoya Yoshida

2015-01-01T23:59:59.000Z

159

Electron-beam patterning of polymer electrolyte films to make multiple nanoscale gates for nanowire transistors  

E-Print Network [OSTI]

We report an electron-beam based method for the nanoscale patterning of the poly(ethylene oxide)/LiClO$_{4}$ polymer electrolyte. We use the patterned polymer electrolyte as a high capacitance gate dielectric in single nanowire transistors and obtain subthreshold swings comparable to conventional metal/oxide wrap-gated nanowire transistors. Patterning eliminates gate/contact overlap which reduces parasitic effects and enables multiple, independently controllable gates. The method's simplicity broadens the scope for using polymer electrolyte gating in studies of nanowires and other nanoscale devices.

D. J. Carrad; A. M. Burke; R. W. Lyttleton; H. J. Joyce; H. H. Tan; C. Jagadish; K. Storm; H. Linke; L. Samuelson; A. P. Micolich

2014-04-08T23:59:59.000Z

160

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Presentation Presentation * CAES Aquifer Technology * Geological Framework of Iowa * Dallas Center Structure * Results of CAES Feasibility Simulation * ISEP CAES Development Plan How Does CAES Work? CAES Turbo-Machinery Operating Requirements Equipment Manufacturer Plant Size (MW) Min. Inlet Pressure (psi) Min. Flow Rate (lbs/MW/hr) Total Min. Flow Rate (lb/hr) Allison 15 200 9500 142,500 MAN Turbo 50 50 9500 475,000 Dresser Rand 134 830 9500 1,273,000 Alston 300 900 9500 2,850,000 Westinghouse (501D5) 350 750 9500 3,325,000 Westinghouse (501F) 450 750 9500 3,275,000 Earth Storage System Designs All based on the concept of multiple geologic and hydrologic barriers. DESIGN CRITERIA * Capacity: 5 to 10 BCF Total Vessel Volume * Integrity of Vessel: <4% of Volume over a year * Fluid Deliverability - 400#/sec = 464 MMscfd

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PUMP CANYON TEST SITE PUMP CANYON TEST SITE Prepared For: 2009 Regional Carbon Sequestration Partnerships Annual Review Meeting Prepared By: George J. Koperna, Jr. Advanced Resources International, Inc. Pittsburgh, November 16-19, 2009 1 1 2 RCSP SP111709 Presentation Outline * Introduction * Operations * Reservoir Characterization and Modeling * Monitoring, Verification and Accounting * Next Steps 3 RCSP SP111709 Objectives * Field-test the effectiveness of CO 2 sequestration in deep, unmineable coal seams via a small-scale geologic sequestration demonstration * Develop a better understanding of the efficacy of enhanced coalbed methane recovery processes via carbon dioxide injection (CO 2 -ECBM) into a pressure-depleted reservoir * Monitor plume migration to prevent any leakage 4 RCSP SP111709

162

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

MetILs: New Ionic Liquids MetILs: New Ionic Liquids for Flow Batteries Travis M. Anderson and David Ingersoll Sandia National Laboratories Sandia National Laboratories is a multiprogram Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under Contract DE-AC04- 94AL85000. Ionic Liquids (ILs) for Flow Batteries Wasserscheid and Keim, Angew. Chem. Int. Ed. 2000, 3772-3789. Nishimura et al, JP Patent 86,935, 2010 * Low symmetry * Weak Intermolecular Forces * Low charge density * Higher energy density * Negligible vapor pressure * Non-corrosive Ionic Liquids with Metal Cations (MetILs) Ferrocenyl-Functionalized Imidazoliums Zinc- and Silver-Amine Complexes Balasubramanian, Wang, and Murray, J. Am. Chem. Soc. 2006, 9994-9995. Huang, Luo,

163

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conard Stair Conard Stair Enforcement Program Manager B&W Y-12 March 2012 Enforcement Coordination Working Group Spring 2012 Meeting Y-12 Approach to Enforcement Y-12 Enforcement Program Office (EPO) * Integrated program with a single point of contact for enforcement activities for radiological protection, worker safety and health, and classified information security * Proceduralized and automated process that provides consistent documentation of compliance determinations and reporting * Uses a decentralized approach with Line Management Price- Anderson Officers (LMPOs) assisted by a cadre of subject matter experts to perform screening determinations * Provides policy, direction, guidance, and independent oversight * Serves as chief technical advisor to senior leadership team on

164

High temperature pressure gauge  

DOE Patents [OSTI]

A high temperature pressure gauge comprising a pressure gauge positioned in fluid communication with one end of a conduit which has a diaphragm mounted in its other end. The conduit is filled with a low melting metal alloy above the diaphragm for a portion of its length with a high temperature fluid being positioned in the remaining length of the conduit and in the pressure gauge.

Echtler, J. Paul (Pittsburgh, PA); Scandrol, Roy O. (Library, PA)

1981-01-01T23:59:59.000Z

165

SharePoint 2010 Overview  

Science Journals Connector (OSTI)

Hello and welcome to SharePoint 2010. Microsoft SharePoint has journeyed a long way since the early days of 2001 and SharePoint Portal Server 2003. SharePoint administrators and developers jumped for joy in 20...

Robert Garrett

2011-01-01T23:59:59.000Z

166

Surface texturing of superconductors by controlled oxygen pressure  

DOE Patents [OSTI]

A method of manufacture of a textured layer of a high temperature superconductor on a substrate. The method involves providing an untextured high temperature superconductor material having a characteristic ambient pressure peritectic melting point, heating the superconductor to a temperature below the peritectic temperature, establishing a reduced pO.sub.2 atmosphere below ambient pressure causing reduction of the peritectic melting point to a reduced temperature which causes melting from an exposed surface of the superconductor and raising pressure of the reduced pO.sub.2 atmosphere to cause solidification of the molten superconductor in a textured surface layer.

Chen, Nan (Downers Grove, IL); Goretta, Kenneth C. (Downers Grove, IL); Dorris, Stephen E. (La Grange Park, IL)

1999-01-01T23:59:59.000Z

167

Surface texturing of superconductors by controlled oxygen pressure  

DOE Patents [OSTI]

A method of manufacture of a textured layer of a high temperature superconductor on a substrate is disclosed. The method involves providing an untextured high temperature superconductor material having a characteristic ambient pressure peritectic melting point, heating the superconductor to a temperature below the peritectic temperature, establishing a reduced pO{sub 2} atmosphere below ambient pressure causing reduction of the peritectic melting point to a reduced temperature which causes melting from an exposed surface of the superconductor and raising pressure of the reduced pO{sub 2} atmosphere to cause solidification of the molten superconductor in a textured surface layer. 8 figs.

Chen, N.; Goretta, K.C.; Dorris, S.E.

1999-01-05T23:59:59.000Z

168

Presented at the 2003 USSD Annual Lecture, Charleston, South Carolina. April 2003. SPILLWAY GATE RELIABILITY IN THE CONTEXT OF  

E-Print Network [OSTI]

and operations are listed and illustrated through their application to the Thames Flood Barrier gates

Bowles, David S.

169

Wax Point Determinations Using Acoustic Resonance Spectroscopy  

SciTech Connect (OSTI)

The thermodynamic characterization of the wax point of a given crude is essential in order to maintain flow conditions that prevent plugging of undersea pipelines. This report summarizes the efforts made towards applying an Acoustic Cavity Resonance Spectrometer (ACRS) to the determination of pressures and temperatures at which wax precipitates from crude. Phillips Petroleum Company, Inc., the CRADA participant, supplied the ACRS. The instrumentation was shipped to Dr. Thomas Schmidt of ORNL, the CRADA contractor, in May 2000 after preliminary software development performed under the guidance of Dr. Samuel Colgate and Dr. Evan House of the University of Florida, Gainesville, FL. Upon receipt it became apparent that a number of modifications still needed to be made before the ACRS could be precisely and safely used for wax point measurements. This report reviews the sequence of alterations made to the ACRS, as well as defines the possible applications of the instrumentation once the modifications have been completed.

Jubin, R.T.

2002-04-08T23:59:59.000Z

170

High-pressure crystallography  

Science Journals Connector (OSTI)

The history and development of high-pressure crystallography are briefly described and examples of structural transformations in compressed compounds are given. The review is focused on the diamond-anvil cell, celebrating its 50th anniversary this year, the principles of its operation and the impact it has had on high-pressure X-ray diffraction.

Katrusiak, A.

2007-12-21T23:59:59.000Z

171

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

Customer Acceptance of Smart Grid Customer Acceptance of Smart Grid DOE Energy Advisory Committee Meeting June 6, 2013 Judith Schwartz, To the Point + INNOVATORS EARLY ADOPTERS EARLY MAJORITY LATE MAJORITY LATE ADOPTERS Indifferents Tech Enthusiasts Green Altruists Comfort Lovers Cost Conscious Doubters Green buildings Simple feedback interface Price incentives Seamless automation Who Are Our Customers? + Why Will They Care About SG? 1. Information, incentives, and automation to easily reduce or defer electricity use 2. Integrate clean generation and transportation 3. Reduce, pinpoint, and restore outages + Fly Under the Radar Active Engagement Slow Build Back end deployment first in sequence AMI rollout in process or pilots are imminent Practice incremental modernization efforts High % of "indifferent"

172

PowerPoint Presentation  

Broader source: Energy.gov (indexed) [DOE]

John Nangle, National Renewable Energy Laboratory (NREL) John Nangle, National Renewable Energy Laboratory (NREL) Tribal Leader Forum, Phoenix, AZ - May 30 - 31, 2013 State Incentives and Project Impacts Main Points - Market Context * State Renewable Portfolio Standards (RPS) - What are they? - How can they help your project? - Potential gap means more market demand for RE projects Starting a Renewable Energy Project * What renewable resources exist? * What sites with resources do you own? * To whom will you sell the electricity? * How will federal and state incentives or policies impact your project? * Access to transmission * Other policies - Interconnection standards - Environmental standards Renewable Portfolio Standard (RPS) * A requirement set by a state for utilities to generate x% of electricity from renewables by a specific date

173

Repelling Point Bosons  

SciTech Connect (OSTI)

There is a body of conventional wisdom that holds that a solvable quantum problem, by virtue of its solvability, is pathological and thus irrelevant. It has been difficult to refute this view owing to the paucity of theoretical constructs and experimental results. Recent experiments involving equivalent ions trapped in a spatial conformation of extreme anisotropic confinement (longitudinal extension tens, hundreds or even thousands of times transverse extension) have modified the view of relevancy, and it is now possible to consider systems previously thought pathological, in particular point Bosons that repel in one dimension. It has been difficult for the experimentalists to utilize existing theory, mainly due to long-standing theoretical misunderstanding of the relevance of the permutation group, in particular the non-commutativity of translations (periodicity) and transpositions (permutation). This misunderstanding is most easily rectified in the case of repelling Bosons.

McGuire, J. B. [Department of Physics, Florida Atlantic Univ., Boca Raton, FL (United States)

2011-12-01T23:59:59.000Z

174

High-Pressure Micellar Solutions of Symmetric and Asymmetric Styrene?Diene Diblocks in Compressible Near Critical Solvents: Micellization Pressures and Cloud Pressures Respond but Micellar Cloud Pressures Insensitive to Copolymer Molecular Weight, Concentration, and Block Ratio Changes  

SciTech Connect (OSTI)

Micellar solutions of polystyrene-block-polybutadiene and polystyrene-block-polyisoprene in propane are found to exhibit significantly lower cloud pressures than the corresponding hypothetical nonmicellar solutions. Such a cloud-pressure reduction indicates the extent to which micelle formation enhances the apparent diblock solubility in near-critical and hence compressible propane. Concentration-dependent pressure-temperature points beyond which no micelles can be formed, referred to as the micellization end points, are found to depend on the block type, size, and ratio. The cloud-pressure reduction and the micellization end point measured for styrene-diene diblocks in propane should be characteristic of all amphiphilic diblock copolymer solutions that form micelles in compressible solvents.

Winoto, Winoto [University of Wyoming, Laramie; Tan, Sugata [University of Wyoming, Laramie; Shen, Youqin [University of Wyoming, Laramie; Radosz, Maciej [University of Wyoming, Laramie; Hong, Kunlun [ORNL; Mays, Jimmy [ORNL

2009-01-01T23:59:59.000Z

175

PRESSURE ACTIVATED SEALANT TECHNOLOGY  

SciTech Connect (OSTI)

The objective of this project is to develop new, efficient, cost effective methods of internally sealing natural gas pipeline leaks through the application of differential pressure activated sealants. In researching the current state of the art for gas pipeline sealing technologies we concluded that if the project was successful, it appeared that pressure activated sealant technology would provide a cost effective alternative to existing pipeline repair technology. From our analysis of current field data for a 13 year period from 1985 to 1997 we were able to identify 205 leaks that were candidates for pressure activated sealant technology, affirming that pressure activated sealant technology is a viable option to traditional external leak repairs. The data collected included types of defects, areas of defects, pipe sizes and materials, incident and operating pressures, ability of pipeline to be pigged and corrosion states. This data, and subsequent analysis, was utilized as a basis for constructing applicable sealant test modeling.

Michael A. Romano

2004-04-01T23:59:59.000Z

176

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hardwood Forest Hardwood Forest Year: 2000 Site: CHEQ (Wisconsin, USA) Biome: Mixed Forest Day of Year 0 60 120 180 240 300 360 LAI (m 2 m -2 ) 0 1 2 3 4 5 Hardwood Year: 2000 Site: CHEQ (Wisconsin, USA) Biome: Mixed Forest BigFoot Meteorological Inputs Precipitation (cm) 0 60 120 180 240 300 360 0 1 2 3 4 5 6 Minimum Temperature ( o C) 0 60 120 180 240 300 360 -40 -20 0 20 40 Maximum Temperature ( o C) 0 60 120 180 240 300 360 -20 -10 0 10 20 30 40 Vapor Pressure Deficit (kPa) Day of Year 0 60 120 180 240 300 360 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 Shortwave Radiation (MJ m -2 d -1 ) Day of Year 0 60 120 180 240 300 360 0 5 10 15 20 25 30 PAR (MJ m -2 d -1 ) Day of Year 0 60 120 180 240 300 360 0 2 4 6 8 10 12 14 16 Year: 2000 Site: CHEQ (Wisconsin, USA) Biome: Mixed Forest BigFoot GPP Comparison BigFoot vs. Tower Day of Year 0 60 120 180 240 300 360 GPP (gC m -2 d -1 ) 0 2 4 6 8 10 Tower BigFoot Tower GPP (gC m

177

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Day of Year Day of Year 0 60 120 180 240 300 360 LAI (m 2 m -2 ) 0 1 2 3 4 5 Hardwood Forest Year: 2002 Site: HARV (Mass., USA) Biome: Hardwood Forest BigFoot LAI Seasonal Trajectory Hardwood Forest Year: 2002 Site: HARV (Mass., USA) Biome: Hardwood Forest BigFoot Meteorological Inputs Precipitation (cm) 0 60 120 180 240 300 360 0 1 2 3 4 5 Minimum Temperature ( o C) 0 60 120 180 240 300 360 -30 -20 -10 0 10 20 30 40 Maximum Temperature ( o C) 0 60 120 180 240 300 360 -10 0 10 20 30 40 Vapor Pressure Deficit (kPa) Day of Year 0 60 120 180 240 300 360 0.0 0.5 1.0 1.5 2.0 2.5 Shortwave Radiation (MJ m -2 d -1 ) Day of Year 0 60 120 180 240 300 360 0 5 10 15 20 25 30 35 PAR (MJ m -2 d -1 ) Day of Year 0 60 120 180 240 300 360 0 2 4 6 8 10 12 14 16 18 Year: 2002 Site: HARV (Mass., USA) Biome: Hardwood Forest BigFoot GPP Comparison BigFoot vs. Tower Day of Year 0 60 120 180 240 300 360 GPP (gC m -2 d -1 ) 0 2 4 6

178

South Gate, California: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Gate, California: Energy Resources Gate, California: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 33.954737°, -118.2120161° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":33.954737,"lon":-118.2120161,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

179

Ocean Gate, New Jersey: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Gate, New Jersey: Energy Resources Gate, New Jersey: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 39.926785°, -74.1337496° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.926785,"lon":-74.1337496,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

180

Synthesis of Reversible Functions Beyond Gate Count and Quantum Cost  

E-Print Network [OSTI]

Many synthesis approaches for reversible and quantum logic have been proposed so far. However, most of them generate circuits with respect to simple metrics, i.e. gate count or quantum cost. On the other hand, to physically realize reversible and quantum hardware, additional constraints exist. In this paper, we describe cost metrics beyond gate count and quantum cost that should be considered while synthesizing reversible and quantum logic for the respective target technologies. We show that the evaluation of a synthesis approach may differ if additional costs are applied. In addition, a new cost metric, namely Nearest Neighbor Cost (NNC) which is imposed by realistic physical quantum architectures, is considered in detail. We discuss how existing synthesis flows can be extended to generate optimal circuits with respect to NNC while still keeping the quantum cost small.

Robert Wille; Mehdi Saeedi; Rolf Drechsler

2010-04-26T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

END POINTS MANAGEMENT End Points Management The Need for End Point Specifications  

Broader source: Energy.gov (indexed) [DOE]

MANAGEMENT MANAGEMENT End Points Management The Need for End Point Specifications The Need for a Method to Derive End Points Guiding Principles for Specifying End Points Tailored Approach Headquarters, Field Office, and Contractor Roles End Points Approvals Contractor Organization Functions for End Points Implementation Training and Walkdown Guidance for the Facility Engineers The Need for End Point Specifications The policy of the EM is that a formal project management approach be used for the planning, managing, and conducting of its projects. A fundamental premise of project management for facility deactivation is answering the question: How do you know when the project is complete? Just as the design specifications are essential to a

182

PowerPoint Presentation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Conifer Forest Conifer Forest Year: 2002 Site: METL (Oregon, USA) Biome: Conifer Forest Day of Year 0 60 120 180 240 300 360 LAI (m 2 m -2 ) 0.0 0.5 1.0 1.5 2.0 Conifer Year: 2002 Site: METL (Oregon, USA) Biome: Conifer Forest BigFoot Meteorological Inputs Precipitation (cm) 0 60 120 180 240 300 360 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Minimum Temperature ( o C) 0 60 120 180 240 300 360 -20 -10 0 10 20 30 40 Maximum Temperature ( o C) 0 60 120 180 240 300 360 -10 0 10 20 30 40 Vapor Pressure Deficit (kPa) Day of Year 0 60 120 180 240 300 360 0 1 2 3 4 Shortwave Radiation (MJ m -2 d -1 ) Day of Year 0 60 120 180 240 300 360 0 5 10 15 20 25 30 35 PAR (MJ m -2 d -1 ) Day of Year 0 60 120 180 240 300 360 0 2 4 6 8 10 12 14 16 18 Year: 2002 Site: METL (Oregon, USA) Biome: Conifer Forest BigFoot GPP Comparison BigFoot vs. Tower Day of Year 0 60 120 180 240 300 360 GPP (gC m -2 d -1 ) 0 1 2 3 4 5 6 Tower BigFoot Tower GPP (gC m

183

St Andrews Recycling Points Recycling Points are situated locally to  

E-Print Network [OSTI]

St Andrews Recycling Points Recycling Points are situated locally to allow you to recycle the following materials: To find your nearest Recycling Point please visit www.fifedirect.org.uk/wasteaware or call the Recycling Helpline on 08451 55 00 22. R&A GOLF CLUB OLD COURSE HOTEL UNIVERSITY NORTH HAUGH

St Andrews, University of

184

Master external pressure charts  

SciTech Connect (OSTI)

This paper presents a method to develop master external pressure charts from which individual external pressure charts for each material specification may be derived. The master external charts can represent a grouping of materials with similar chemical composition, similar stress-strain curves but produced to different strength levels. External pressure charts are used by various Sections of the ASME Boiler and Pressure Vessel and Piping Codes to design various components such as cylinders, sphered, formed heads, tubes, piping, rings and other components, subjected to external pressure or axial compression loads. These charts are pseudo stress-strain curves for groups of materials with similar stress-strain shapes. The traditional approach was originally developed in the 1940`s and is a graphical approach where slopes to the strain curves are drawn graphically from which pseudo-strain levels are calculated. The new method presented in this paper develops mathematical relationships for the material stress-strain curves and the external pressure charts. The method has the ability to calculate stress-strain curves from existing external pressure charts. The relationships are a function of temperature, the modulus of elasticity, yield strength, and two empirical material constants. In this approach, conservative assumptions used to assign materials to lower bound external pressure charts can be removed. This increases the buckling strength capability of many materials in the Code, providing economic benefits while maintaining the margin of safety specified by the Code criteria. The method can also reduce the number of material charts needed in the Code and provides for the capability to extend the existing pressure charts to higher design temperatures. The new method is shown to contain a number of improvements over the traditional approach and is presently under consideration by appropriate ASME Code committees.

Michalopoulos, E. [Hartford Steam Boiler Inspection and Insurance Co., CT (United States). Codes and Standards Dept.

1996-12-01T23:59:59.000Z

185

Regelation: why does ice melt under pressure?  

E-Print Network [OSTI]

Unlike other unusual materials whose bonds contract under compression, the O:H nonbond undergoes contraction and the H-O bond elongation towards O:H and H-O length symmetry in water and ice. The energy drop of the H-O bond dictates the melting point Tm depression of ice. Once the pressure is relieved, the O:H-O bond fully recovers its initial state, resulting in Regelation.

Sun, Chang Q

2015-01-01T23:59:59.000Z

186

Group Response System Turning Point  

E-Print Network [OSTI]

. · But more often I do use it within a slide show. Somewhat more difficult to manage. But some great uses-Add-in for Power Point. · Some "Clicking" practice. #12;Make A Slide-Add to this file. · Esc, click on TurningPoint add-in · Pick Insert Slide in Turning Point bar and insert a Turning Point slide after this slide

187

High pressure counterflow CHF.  

E-Print Network [OSTI]

This is a report of the experimental results of a program in countercurrent flow critical heat flux. These experiments were performed with Freon 113 at 200 psia in order to model a high pressure water system. An internally ...

Walkush, Joseph Patrick

1975-01-01T23:59:59.000Z

188

Nonlinear optomechanical pressure  

E-Print Network [OSTI]

A transparent material exhibits ultra-fast optical nonlinearity and is subject to optical pressure if irradiated by a laser beam. However, the effect of nonlinearity on optical pressure is often overlooked, even if a nonlinear optical pressure may be potentially employed in many applications, as optical manipulation, biophysics, cavity optomechanics, quantum optics, optical tractors, and is relevant in fundamental problems as the Abraham-Minkoswky dilemma, or the Casimir effect. Here we show that an ultra-fast nonlinear polarization gives indeed a contribution to the optical pressure that also is negative in certain spectral ranges; the theoretical analysis is confirmed by first-principles simulations. An order of magnitude estimate shows that the effect can be observable by measuring the deflection of a membrane made by graphene.

Claudio Conti; Robert Boyd

2014-03-08T23:59:59.000Z

189

Chapter 9 - Vacuum and High-Pressure Distillation  

Science Journals Connector (OSTI)

Abstract In industrial practice, multistage distillation operations are carried out over a wide range of operating pressures, from about 0.1 to 40 bar (10,000 to 40105Pa). Major factors in choosing the operating pressure are the temperatures of the available cooling and heating media, with water and low-pressure steam being the most convenient ones. Volatile materials require high pressure to raise their condensation temperature to the desired level. Relative volatility tends to decrease with increasing pressure, and, thermodynamically, the upper limit is the critical temperature of the components in the feed. In such cases, a lower operating pressure is chosen and refrigeration must be employed for condensation of overhead vapor instead of cooling water or air. When dealing with high-boiling material, the upper limit for setting the operating pressure depends on the heat sensitivity of the bottom product components. This often requires distilling under an appropriate vacuum in conjunction with a low enough pressure drop to reduce the column bottom temperature accordingly. From the column design point of view, the operating pressure dictates to a great extent the choice and design of internals, and it influences significantly their functionality and overall performance. The main objective of the present chapter is to address and discuss operating pressure selection criteria as well as pressure effects on stage and reflux requirement, vapor and liquid properties, distillation process in general, and trayed and packed-column hydraulics and efficiency in particular.

arko Oluji?

2014-01-01T23:59:59.000Z

190

Use of a hard mask for formation of gate and dielectric via nanofilament field emission devices  

DOE Patents [OSTI]

A process for fabricating a nanofilament field emission device in which a via in a dielectric layer is self-aligned to gate metal via structure located on top of the dielectric layer. By the use of a hard mask layer located on top of the gate metal layer, inert to the etch chemistry for the gate metal layer, and in which a via is formed by the pattern from etched nuclear tracks in a trackable material, a via is formed by the hard mask will eliminate any erosion of the gate metal layer during the dielectric via etch. Also, the hard mask layer will protect the gate metal layer while the gate structure is etched back from the edge of the dielectric via, if such is desired. This method provides more tolerance for the electroplating of a nanofilament in the dielectric via and sharpening of the nanofilament.

Morse, Jeffrey D. (Martinez, CA); Contolini, Robert J. (Lake Oswego, OR)

2001-01-01T23:59:59.000Z

191

Pressure Relief Devices for High-Pressure Gaseous Storage Systems...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pressure Relief Devices for High-Pressure Gaseous Storage Systems: Applicability to Hydrogen Technology A. Kostival, C. Rivkin, W. Buttner, and R. Burgess National Renewable Energy...

192

Microsoft PowerPoint - GeoSiphonTechBriefp1.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

GeoSiphon GeoSiphon at a glance  U.S. patent 6,254,785  in situ  accelerated clean-up  lower operating & maintenance costs  proven technology Scientists at the Savannah River National Laboratory have developed innovative processes for groundwater remediation. Called the GeoSiphon, this process offers significant advantages over pump and treat systems, funnel and gate systems and continuous permeable wall treatment systems. The GeoSiphon Cell is a passive, in situ, groundwater treatment system which uses a siphon between two points of natural head difference to induce greater than natural flow through a permeable treatment media. GeoSiphon cells advance the current state of the art for reactive barriers (i.e. funnel and gate) by using

193

Simple trapped-ion architecture for high-fidelity Toffoli gates  

SciTech Connect (OSTI)

We discuss a simple architecture for a quantum toffoli gate implemented using three trapped ions. The gate, which, in principle, can be implemented with a single laser-induced operation, is effective under rather general conditions and is strikingly robust (within any experimentally realistic range of values) against dephasing, heating, and random fluctuations of the Hamiltonian parameters. We provide a full characterization of the unitary and noise-affected gate using three-qubit quantum process tomography.

Borrelli, Massimo [CM-DTC, SUPA, EPS/School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Mazzola, Laura [Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto (Finland); School of Mathematics and Physics, Queen's University, BT7 1NN Belfast (United Kingdom); Paternostro, Mauro [School of Mathematics and Physics, Queen's University, BT7 1NN Belfast (United Kingdom); Maniscalco, Sabrina [CM-DTC, SUPA, EPS/School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS (United Kingdom); Turku Centre for Quantum Physics, Department of Physics and Astronomy, University of Turku, FI-20014 Turun yliopisto (Finland)

2011-07-15T23:59:59.000Z

194

Geometric phase gate on an optical transition for ion trap quantum computation  

Science Journals Connector (OSTI)

We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates mediated by electric dipole transitions, the gate has many interesting properties, such as very low spontaneous emission rates, applicability to magnetic field insensitive states, and use of a co-propagating laser beam geometry. We estimate that current technology allows for infidelities of around 10?4.

K. Kim; C. F. Roos; L. Aolita; H. Hffner; V. Nebendahl; R. Blatt

2008-05-08T23:59:59.000Z

195

Geometric phase gate on an optical transition for ion trap quantum computation  

E-Print Network [OSTI]

We propose a geometric phase gate of two ion qubits that are encoded in two levels linked by an optical dipole-forbidden transition. Compared to hyperfine geometric phase gates mediated by electric dipole transitions, the gate has many interesting properties, such as very low spontaneous emission rates, applicability to magnetic field insensitive states, and use of a co-propagating laser beam geometry. We estimate that current technology allows for infidelities of around 10$^{-4}$.

K. Kim; C. F. Roos; L. Aolita; H. Haeffner; V. Nebendahl; R. Blatt

2007-10-21T23:59:59.000Z

196

Increase of the reliability and cost effectiveness of the Leningrad flood control gates  

SciTech Connect (OSTI)

This paper presents the results of a detailed analysis of competing designs of rolling gates and floating radial gates for the Leningrad flood control system and describes from a hydraulic engineering standpoint those aspects of the gate designs which led to the conclusion that they did not have sufficient reliability for the loads encountered under flood conditions. Specific design revisions which take into account not only the flood loads but also the navigation and dock parts of the structures were investigated and recommended.

Khlopenkov, P.R.

1988-06-01T23:59:59.000Z

197

Micromachined Bradbury-Nielsen Gates Ignacio A. Zuleta, Griffin K. Barbula, Matthew D. Robbins, Oh Kyu Yoon, and Richard N. Zare*  

E-Print Network [OSTI]

Micromachined Bradbury-Nielsen Gates Ignacio A. Zuleta, Griffin K. Barbula, Matthew D. Robbins, Oh 94305-5080 Bradbury-Nielsen gates (BNGs) are a standard way for gating or steering beams of charged for axial gating of an ion beam is referred to as a Bradbury-Nielsen gate (BNG).6 Depending on the kinetic

Zare, Richard N.

198

PowerPoint Posters 1 PowerPointPowerPoint Creating PostersCreating Posters  

E-Print Network [OSTI]

PowerPoint Posters 1 PowerPointPowerPoint ­­ Creating PostersCreating Posters Course Description: This course is designed to assist the you in creating eye-catching effective posters for presentation of research findings at scientific conferences and exhibits. Participants will create a 4' x 6' poster from

Collins, Gary S.

199

Bill Gates and Deputy Secretary Poneman Discuss the Energy Technology Landscape  

Broader source: Energy.gov [DOE]

Bill Gates and Deputy Secretary of Energy Daniel Poneman discuss the future of energy technology during the twenty-second Plenary Meeting of the Nuclear Suppliers Group.

200

Reversible Switching of an Optical Gate Using Phase-Change Material and Si Waveguide  

Science Journals Connector (OSTI)

Optical gate switch that uses Ge2Sb2Te5phase-change material was fabricated and the reversible switching has been...

Ikuma, Yuichiro; Shoji, Yuya; Kuwahara, Masashi; Wang, Xiaomin; Kintaka, Kenji; Kawashima, Hitoshi; Tanaka, Daiki; Tsuda, Hiroyuki

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Development of a time-gated system for Raman spectroscopy of biological samples  

Science Journals Connector (OSTI)

A time gating system has been constructed that is capable of recording high quality Raman spectra of highly fluorescing biological samples while operating below the photodamage...

Knorr, Florian; Smith, Zachary J; Wachsmann-Hogiu, Sebastian

2010-01-01T23:59:59.000Z

202

Locally observable conditions for the successful implementation of entangling multi-qubit quantum gates  

E-Print Network [OSTI]

The information obtained from the operation of a quantum gate on only two complementary sets of input states is sufficient to estimate the quantum process fidelity of the gate. In the case of entangling gates, these conditions can be used to predict the multi qubit entanglement capability from the fidelities of two non-entangling local operations. It is then possible to predict highly non-classical features of the gate such as violations of local realism from the fidelities of two completely classical input-output relations, without generating any actual entanglement.

Holger F. Hofmann; Ryo Okamoto; Shigeki Takeuchi

2005-09-01T23:59:59.000Z

203

Synthesis of Reversible Functions Using Various Gate Libraries and Design Specifications.  

E-Print Network [OSTI]

?? This dissertation is devoted to efficient automated logic synthesis of reversible circuits using various gate types and initial specifications. These Reversible circuits are of (more)

Alhagi, Nouraddin

2010-01-01T23:59:59.000Z

204

Coherence-Controlled Holographic Microscopy for Coherence-Gated Quantitative Phase Imaging  

Science Journals Connector (OSTI)

We show that the use of incoherent illumination in coherence-controlled holographic microscopy (CCHM) enables coherence-gated quantitative phase imaging of objects through turbid...

Slaby, Tomas; Kolman, Pavel; Dostal, Zbynek; Antos, Martin; Lostak, Martin; Krizova, Aneta; Collakova, Jana; Kollarova, Vera; Slaba, Michala; Vesely, Pavel; Chmelik, Radim

205

E-Print Network 3.0 - affects voltage-gated calcium Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

modulate neuronal voltage-gated calcium cur- rents, we performed a whole-cell patch... that hippocampal neurons in an astrocyte-enriched environment show augmentation of...

206

Use of high-level design information for enabling automation of fine-grained power gating  

E-Print Network [OSTI]

Leakage power reduction through power gating requires considerable design and verification effort. Conventionally, extensive analysis is required for dividing a heterogeneous design into power domains and generating control ...

Agarwal, Abhinav

2014-01-01T23:59:59.000Z

207

SiC Power MOSFET with Improved Gate Dielectric  

SciTech Connect (OSTI)

In this STTR program, Structured Materials Industries (SMI), and Cornell University are developing novel gate oxide technology, as a critical enabler for silicon carbide (SiC) devices. SiC is a wide bandgap semiconductor material, with many unique properties. SiC devices are ideally suited for high-power, highvoltage, high-frequency, high-temperature and radiation resistant applications. The DOE has expressed interest in developing SiC devices for use in extreme environments, in high energy physics applications and in power generation. The development of transistors based on the Metal Oxide Semiconductor Field Effect Transistor (MOSFET) structure will be critical to these applications.

Sbrockey, Nick M; Tompa, Gary S; Spencer, Michael G; Chandrashekhar, Chandra MVS

2010-08-23T23:59:59.000Z

208

Alternative Gate Dielectrics on Semiconductors for MOSFET Device Applications  

SciTech Connect (OSTI)

We have investigated the synthesis and properties of deposited oxides on Si and Ge for use as alternative gate dielectrics in MOSFET applications. The capacitance and leakage current behavior of polycrystalline Y{sub 2}O{sub 3} films synthesized by pulsed-laser deposition is reported. In addition, we also discuss the growth of epitaxial oxide structures. In particular, we have investigated the use of silicide termination for oxide growth on (001) Si using laser-molecular beam epitaxy. In addition, we discuss a novel approach involving the use of hydrogen to eliminate native oxide during initial dielectric oxide nucleation on (001) Ge.

Norton, D.P.; Budai, J.D.; Chisholm, M.F.; Pennycook, S.J.; McKee, R.; Walker, F.; Lee, Y.; Park, C.

1999-12-06T23:59:59.000Z

209

Three-qubit phase gate based on cavity quantum electrodynamics  

E-Print Network [OSTI]

- mentation, such as linear ion traps #4;1#5;, liquid-state nuclear magnetic resonance #1;NMR#2; #4;2#5;, and cavity QED systems #4;3,4#5;. There are three requirements for implementing a quantum computer: Efficient manipulation and read out of an indi.... #4;6#5;, a scheme to implement a two-qubit quantum phase gate and one-qubit unitary operation implementation based on cavity QED was described. They choose the Fock states #6;0#7; and #6;1#7; of a high Q cavity mode as the two logical states of a...

Chang, Jun-Tao; Zubairy, M. Suhail

2008-01-01T23:59:59.000Z

210

Saltstone Osmotic Pressure  

SciTech Connect (OSTI)

Recent research into the moisture retention properties of saltstone suggest that osmotic pressure may play a potentially significant role in contaminant transport (Dixon et al., 2009 and Dixon, 2011). The Savannah River Remediation Closure and Disposal Assessments Group requested the Savannah River National Laboratory (SRNL) to conduct a literature search on osmotic potential as it relates to contaminant transport and to develop a conceptual model of saltstone that incorporates osmotic potential. This report presents the findings of the literature review and presents a conceptual model for saltstone that incorporates osmotic potential. The task was requested through Task Technical Request HLW-SSF-TTR-2013-0004. Simulated saltstone typically has very low permeability (Dixon et al. 2008) and pore water that contains a large concentration of dissolved salts (Flach and Smith 2013). Pore water in simulated saltstone has a high salt concentration relative to pore water in concrete and groundwater. This contrast in salt concentration can generate high osmotic pressures if simulated saltstone has the properties of a semipermeable membrane. Estimates of osmotic pressure using results from the analysis of pore water collected from simulated saltstone show that an osmotic pressure up to 2790 psig could be generated within the saltstone. Most semi-permeable materials are non-ideal and have an osmotic efficiency <1 and as a result actual osmotic pressures are less than theoretical pressures. Observations from laboratory tests of simulated saltstone indicate that it may exhibit the behavior of a semi-permeable membrane. After several weeks of back pressure saturation in a flexible wall permeameter (FWP) the membrane containing a simulated saltstone sample appeared to have bubbles underneath it. Upon removal from the FWP the specimen was examined and it was determined that the bubbles were due to liquid that had accumulated between the membrane and the sample. One possible explanation for the accumulation of solution between the membrane and sample is the development of osmotic pressure within the sample. Osmotic pressure will affect fluid flow and contaminant transport and may result in the changes to the internal structure of the semi-permeable material. B?nard et al. 2008 reported swelling of wet cured Portland cement mortars containing salts of NaNO{sub 3}, KNO{sub 3}, Na{sub 3}PO{sub 4}x12H {sub 2}O, and K{sub 3}PO{sub 4} when exposed to a dilute solution. Typically hydraulic head is considered the only driving force for groundwater in groundwater models. If a low permeability material containing a concentrated salt solution is present in the hydrogeologic sequence large osmotic pressures may develop and lead to misinterpretation of groundwater flow and solute transport. The osmotic pressure in the semi-permeable material can significantly impact groundwater flow in the vicinity of the semi-permeable material. One possible outcome is that groundwater will flow into the semi-permeable material resulting in hydrologic containment within the membrane. Additionally, hyperfiltration can occur within semi-permeable materials when water moves through a membrane into the more concentrated solution and dissolved constituents are retained in the lower concentration solution. Groundwater flow and transport equations that incorporate chemical gradients (osmosis) have been developed. These equations are referred to as coupled flow equations. Currently groundwater modeling to assess the performance of saltstone waste forms is conducted using the PORFLOW groundwater flow and transport model. PORFLOW does not include coupled flow from chemico-osmotic gradients and therefore numerical simulation of the effect of coupled flow on contaminant transport in and around saltstone cannot be assessed. Most natural semi-permeable membranes are non-ideal membranes and do not restrict all movement of solutes and as a result theoretical osmotic potential is not realized. Osmotic efficiency is a parameter in the coupled flow equation that accounts for the

Nichols, Ralph L.; Dixon, Kenneth L.

2013-09-23T23:59:59.000Z

211

Behavior of silver molybdate at high-pressure  

SciTech Connect (OSTI)

Behavior of cubic spinel phase of Ag{sub 2}MoO{sub 4} is investigated at high pressure using X-ray diffraction and Raman spectroscopy. The P-V data are fitted to a third order Birch-Murnaghan equation of state using a value of B{sub 0}=113 GPa and B Prime {sub 0}=4. The compound is also found to exhibit a phase transition around 5 GPa to a tetragonal structure and the two phases are found to coexist over a range of pressures. Raman spectra exhibit dramatic changes across the phase transition. Increase of X-ray background scattering and broadening of the Raman peaks associated with MoO{sub 4} tetrahedral ions in the high pressure phase suggest evolution of positional disorder. However, no evidence of pressure-induced amorphization was found up to 47 GPa. - Graphical abstract: Evolution of the integrated intensity of all the diffraction peaks between 12 and 18 degree 2{theta} as a function of pressure. The rapid decrease of the intensity suggests evolution of positional disorder in the high-pressure tetragonal phase. Highlights: Black-Right-Pointing-Pointer First in-situ X-ray diffraction and Raman study of cubic silver molybdate at high pressure. Black-Right-Pointing-Pointer Commencement of a structural transition to a tetragonal phase is found at 2.3 GPa. Black-Right-Pointing-Pointer The high-pressure phase is found to have positional disorder. Black-Right-Pointing-Pointer A bulk modulus of 113 GPa is obtained from the equation of state.

Arora, A.K., E-mail: akarora49@yahoo.co.in [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India); Nithya, R. [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India)] [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India); Misra, Sunasira [Liquid Metals and Structural Chemistry Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India)] [Liquid Metals and Structural Chemistry Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India); Yagi, Takehiko [Institute for Solid State Physics, Tokyo University, Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)] [Institute for Solid State Physics, Tokyo University, Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)

2012-12-15T23:59:59.000Z

212

Directions to USC, Gate 6 (Parking Structure A) 110 (Harbor Freeway) North  

E-Print Network [OSTI]

on Vermont Avenue Turn right at 36th Place/Downey Way and enter USC at Gate 6 5 (Golden State/Santa AnaDirections to USC, Gate 6 (Parking Structure A) 110 (Harbor Freeway) North Take the Exposition Boulevard exit Go straight through the 37th Street light. Keep left Go under the freeway bridge and across

Valero-Cuevas, Francisco

213

Electrochemical gating of individual single-wall carbon nanotubes observed by electron transport measurements and resonant  

E-Print Network [OSTI]

, the Fermi energy of a nanotube can be changed, as ions from the solution accu- mulate on the surface gating of nanotubes has been shown previously to effectively shift the Fermi energy of semiconducting with the laser energy, we can observe the Raman spectrum from a single SWNT.7 Electrochemical gating of nanotubes

214

New Silicon Carbide Schottky-gate Bipolar Mode Field Effect Transistor (SiC SBMFET)  

E-Print Network [OSTI]

New Silicon Carbide Schottky-gate Bipolar Mode Field Effect Transistor (SiC SBMFET) without PN. In this paper, we propose a novel Schottky-gate BMFET (SBMFET) using P- type 4H Silicon-Carbide 13,41, a wide, Silicon Carbide, Field effect transistor, Simulation. I. INTRODUCTION TH E BMFET operates in bipolar mode

Kumar, M. Jagadesh

215

Impact of tide gates on the migration of juvenile sea trout, Salmo trutta  

Science Journals Connector (OSTI)

Abstract As part of flood protection and land reclamation schemes, tide gates allow rivers to discharge to sea when open, and prevent salt water intrusion when closed. Their impact on diadromous fish migration between essential spawning and rearing habitats, and the effectiveness of mitigation measures, have received little consideration. The River Meon, UK, discharges to sea through four top-hung counterbalanced tide gates. In March 2012, the gates were replaced with new ones of the same design, but with an orifice installed in two of them partly to improve fish passage. Sixty downstream migrating juvenile sea trout, Salmo trutta, were trapped approximately 4.9km upstream of the tidal limit and tagged with acoustic transmitters in April 2011 (n=30) and 2012 (n=30). Tagged individuals were detected by acoustic receivers placed near the tide gates before (year 1) and after (year 2) orifice installation. Of the fish that approached the tide gates, 95.8% and 100.0% successfully passed in years 1 and 2, respectively. The speed of migration at the gates was slower than for upstream and downstream reaches, and was positively related to percentage of time the gates were open. Presence of the orifices did not influence delay. Overall, top-hung tide gates delayed sea trout migration, potentially increasing the risk of predation and energy expenditure during the vulnerable juvenile life stage.

G.V. Wright; R.M. Wright; P.S. Kemp

2014-01-01T23:59:59.000Z

216

Coherent molecular transistor: Control through variation of the gate wave function  

SciTech Connect (OSTI)

In quantum interference transistors (QUITs), the current through the device is controlled by variation of the gate component of the wave function that interferes with the wave function component joining the source and the sink. Initially, mesoscopic QUITs have been studied and more recently, QUITs at the molecular scale have been proposed and implemented. Typically, in these devices the gate lead is subjected to externally adjustable physical parameters that permit interference control through modifications of the gate wave function. Here, we present an alternative model of a molecular QUIT in which the gate wave function is directly considered as a variable and the transistor operation is discussed in terms of this variable. This implies that we specify the gate current as well as the phase of the gate wave function component and calculate the resulting current through the source-sink channel. Thus, we extend on prior works that focus on the phase of the gate wave function component as a control parameter while having zero or certain discrete values of the current. We address a large class of systems, including finite graphene flakes, and obtain analytic solutions for how the gate wave function controls the transistor.

Ernzerhof, Matthias, E-mail: Matthias.Ernzerhof@UMontreal.ca [Dpartement de Chimie, Universit de Montral, C.P. 6128 Succursale A, Montral, Quebec H3C 3J7 (Canada)] [Dpartement de Chimie, Universit de Montral, C.P. 6128 Succursale A, Montral, Quebec H3C 3J7 (Canada)

2014-03-21T23:59:59.000Z

217

Ambipolar silicon nanowire FETs with stenciled-deposited metal gate Davide Sacchetto  

E-Print Network [OSTI]

Ambipolar silicon nanowire FETs with stenciled-deposited metal gate Davide Sacchetto , Veronica Keywords: Schottky barrier Ambipolarity Si nanowire Stencil lithography FET Silicide a b s t r a c t We chemical vapor deposition (LPCVD) of amorphous Si (a-Si) and SiO2 layers as well as metal gate patterning

De Micheli, Giovanni

218

Surface application of molybdenum silicide onto gated poly-Si emitters for enhanced field emission performance  

E-Print Network [OSTI]

the merits of molybdenum Mo silicide formation on gated polycrystalline silicon poly-Si field emitters. Metal, any metal silicide can be adopted without reSurface application of molybdenum silicide onto gated poly-Si emitters for enhanced field emission

Lee, Jong Duk

219

Nanocrystals Embedded Zirconium-doped Hafnium Oxide High-k Gate Dielectric Films  

E-Print Network [OSTI]

nanoparticles. These results can be important to the novel metal gate/high-k/Si MOS structure. The Ru-modified ZrHfO gate dielectric film showed a large breakdown voltage and a long lifetime. The conventional polycrystalline Si (poly-Si) charge trapping layer...

Lin, Chen-Han

2012-10-19T23:59:59.000Z

220

Optimal Control of Airport Operations with Gate Capacity Constraints Harshad Khadilkar and Hamsa Balakrishnan  

E-Print Network [OSTI]

at Boston's Logan International Airport in the US are used to illustrate the advantages of the proposed for Boston Logan International Airport (BOS) is shown in Fig. 1. Gates at each of the four main terminalsOptimal Control of Airport Operations with Gate Capacity Constraints Harshad Khadilkar and Hamsa

Gummadi, Ramakrishna

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Gate-modulated thermoelectric conversion in disordered nanowires: I. Low temperature coherent regime  

E-Print Network [OSTI]

Gate-modulated thermoelectric conversion in disordered nanowires: I. Low temperature coherent of a disordered nanowire in the presence of an external gate electrode which can be used for depleting the carrier and Gardner for describing the energy dependence of the localization length around the band edges allowing us

Recanati, Catherine

222

Graphene field-effect transistors based on boron nitride gate dielectrics Inanc Meric1  

E-Print Network [OSTI]

Graphene field-effect transistors based on boron nitride gate dielectrics Inanc Meric1 , Cory Dean1, 10027 Tel: (212) 854-2529, Fax: (212) 932-9421, Email: shepard@ee.columbia.edu Abstract Graphene field of graphene, as the gate dielectric. The devices ex- hibit mobility values exceeding 10,000 cm2 /V

Shepard, Kenneth

223

Microfluidic logic gates and timers{ Michael W. Toepke, Vinay V. Abhyankar and David J. Beebe*  

E-Print Network [OSTI]

Microfluidic logic gates and timers{ Michael W. Toepke, Vinay V. Abhyankar and David J. Beebe to create a number of microfluidic analogs to electronic circuit components. Three classes of components are demonstrated: (1) OR/AND, NOR/NAND, and XNOR digital microfluidic logic gates; (2) programmable, autonomous

Beebe, David J.

224

Asynchronous Gate-Diffusion----Input (GDI) Circuits Arkadiy Morgenshtein, Michael Moreinis and Ran Ginosar  

E-Print Network [OSTI]

1 Asynchronous Gate-Diffusion----Input (GDI) Circuits Arkadiy Morgenshtein, Michael Moreinis, Israel [ran@ee.technion.ac.il] Abstract: Novel Gate-Diffusion Input (GDI) circuits are applied to asynchronous design. A variety of GDI implementations are compared with typical CMOS asynchronous circuits

Ginosar, Ran

225

Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate driver chip  

E-Print Network [OSTI]

Design and characterization of a signal insulation coreless transformer integrated in a CMOS gate transformer integrated in a CMOS silicon die together with the gate driver and other required functions frequency through the coreless transformer. The chosen design methodology will be explained and experimental

Paris-Sud XI, Université de

226

Reference Handbook: Pressure detectors  

SciTech Connect (OSTI)

The purpose of this handbook is to provide Rocky Flats personnel with the information necessary to understand pressure detection. Upon completion of this handbook you should be able to do the following: Define pressure in terms of force and area. Describe the basic operating principles of the U-Tube Manometer. Demonstrate proper techniques for reading Manometers. Describe the basic operating principles of the three types of Bourdon Tubes. Explain the difference between diaphragm. and bellows-type pressure measurement devices. This handbook is designed for use by experienced Rocky Flats operators to reinforce and improve their current knowledge level, and by entry-level operators to ensure that they possess a minimum level of fundamental knowledge. Pressure Detectors is applicable to many job classifications and can be used as a reference for classroom work or for self-study. Although this reference handbook is by no means all-encompassing, you will gain enough information about this subject area to assist you in contributing to the safe operations of Rocky Flats Plant.

Not Available

1990-11-09T23:59:59.000Z

227

Single pressure steam bottoming cycle for gas turbines combined cycle  

SciTech Connect (OSTI)

This patent describes a process for recapturing waste heat from the exhaust of a gas turbine to drive a high pressure-high temperature steam turbine and a low pressure steam turbine. It comprises: delivering the exhaust of the gas turbine to the hot side of an economizer-reheater apparatus; delivering a heated stream of feedwater and recycled condensate through the cold side of the economizer-reheater apparatus in an indirect heat exchange relationship with the gas turbine exhaust on the hot side of the economizer-reheater apparatus to elevate the temperature below the pinch point of the boiler; delivering the discharge from the high pressure-high temperature steam turbine through the economizer-reheater apparatus in an indirect heat exchange relationship with the gas turbine exhaust on the hot side of the economizer-reheater apparatus; driving the high pressure-high temperature steam turbine with the discharge stream of feedwater and recycled condensate which is heated to a temperature below the pinch point of the boiler by the economizer-reheater apparatus; and driving the low pressure steam turbine with the discharged stream of the high pressure-high temperature steam turbine reheated below the pinch point of the boiler by the economizer-reheater apparatus.

Zervos, N.

1990-01-30T23:59:59.000Z

228

PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MedGate Occupational MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) More Documents & Publications PIA - Savannah River Nuclear Solution (SRNS) Procurement Cycle System (PCS) PIA - Savannah River Nuclear Solutions (SRNS) Human Resource Management

229

Computer program to analyze multipass pressure-temperature-spinner surveys  

SciTech Connect (OSTI)

A computer program has been developed to analyze multipass pressure-temperature-spinner surveys and summarize the data in graphical form on two plots: (1) an overlay of spinner passes along with a fluid velocity profile calculated from the spinner and (2) an overlay of pressure, pressure gradient, and temperature profiles from each pass. The program has been written using SmartWare II Software. Fluid velocity is calculated for each data point using a cross-plot of tool speed and spinner counts to account for changing flow conditions in the wellbore. The program has been used successfully to analyze spinner surveys run in geothermal wells with two-phase flashing flow.

Spielman, Paul

1994-01-20T23:59:59.000Z

230

Points  

Broader source: Energy.gov (indexed) [DOE]

Project Selections Project Selections Announced October 26, 2009 Lead Research Organization (Partner Organizations) DOE Grant Amount Lead Organization Location Project Description 1366 Technologies Inc. (Massachusetts Institute of Technology - Lab for PV Research) $4,000,000 Lexington, MA Renewable Power (solar) "Direct Wafer" technology to form high efficiency "monocrystalline- equivalent" silicon wafers directly from molten silicon, with potential to halve the installed cost of solar photovoltaics. Agrivida, Inc. $4,565,800 Medford, MA Biomass Energy Cell wall-degrading enzymes grown within the plant itself that are activated after harvest, dramatically reducing the cost of cellulosic biofuels and chemicals Arizona State University (Fluidic Energy,

231

High pressure oxygen furnace  

DOE Patents [OSTI]

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized, the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior. 5 figs.

Morris, D.E.

1992-07-14T23:59:59.000Z

232

High pressure oxygen furnace  

DOE Patents [OSTI]

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized (the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior.

Morris, Donald E. (Kensington, CA)

1992-01-01T23:59:59.000Z

233

Shot noise at the quantum point contact in InGaAs heterostructure  

SciTech Connect (OSTI)

We study the shot noise at a quantum point contact (QPC) fabricated in an InGaAs/InGaAsP heterostructure, whose conductance can be electrically tuned by the gate voltages. Shot noise suppression is observed at the conductance plateau of N(2e{sup 2}/h) (N = 4,5,and 6), which indicates the coherent quantized channel formation in the QPC. The electron heating effect generated at the QPC explains the deviation of the observed Fano factor from the theory.

Nishihara, Yoshitaka; Nakamura, Shuji; Ono, Teruo [Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011 (Japan); Kobayashi, Kensuke [Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043 (Japan); Kohda, Makoto [Department of Materials Science, Tohoku University, 6-6-02 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579, Japan and PRESTO, Japan Science and Technology Agency, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012 (Japan); Nitta, Junsaku [Department of Materials Science, Tohoku University, 6-6-02 Aramaki-aza Aoba, Aoba-ku, Sendai 980-8579 (Japan)

2013-12-04T23:59:59.000Z

234

High pressure storage vessel  

DOE Patents [OSTI]

Disclosed herein is a composite pressure vessel with a liner having a polar boss and a blind boss a shell is formed around the liner via one or more filament wrappings continuously disposed around at least a substantial portion of the liner assembly combined the liner and filament wrapping have a support profile. To reduce susceptible to rupture a locally disposed filament fiber is added.

Liu, Qiang

2013-08-27T23:59:59.000Z

235

Examination of geometric and dosimetric accuracies of gated step-and-shoot intensity modulated radiation therapy  

SciTech Connect (OSTI)

Due to the complicated technical nature of gated radiation therapy, electronic and mechanical limitations may affect the precision of delivery. The purpose of this study is to investigate the geometric and dosimetric accuracies of gated step-and-shoot intensity modulated radiation treatments (SS-IMRT). Unique segmental MLC plans are designed, which allow quantitative testing of the gating process. Both ungated and gated deliveries are investigated for different dose sizes, dose rates, and gating window times using a commercial treatment system (Varian Trilogy) together with a respiratory gating system [Varian Real-Time Position Management system]. Radiographic film measurements are used to study the geometric accuracy, where it is found that with both ungated and gated SS-IMRT deliveries the MLC leaf divergence away from planned is less than or equal to the MLC specified leaf tolerance value for all leafs (leaf tolerance being settable from 0.5-5 mm). Nevertheless, due to the MLC controller design, failure to define a specific leaf tolerance value suitable to the SS-IMRT plan can lead to undesired geometric effects, such as leaf motion of up to the maximum 5 mm leaf tolerance value occurring after the beam is turned on. In this case, gating may be advantageous over the ungated case, as it allows more time for the MLC to reach the intended leaf configuration. The dosimetric precision of gated SS-IMRT is investigated using ionization chamber methods. Compared with the ungated case, it is found that gating generally leads to increased dosimetric errors due to the interruption of the 'overshoot phenomena.' With gating the average timing deviation for intermediate segments is found to be 27 ms, compared to 18 ms for the ungated case. For a plan delivered at 600 MU/min this would correspond to an average segment dose error of {approx}0.27 MU and {approx}0.18 MU for gated and ungated deliveries, respectively. The maximum dosimetric errors for individual intermediate segments are found to deviate by up to {approx}0.64 MU from their planned value when delivered at 600 MU/min using gating, this compares to only {approx}0.32 MU for the ungated case.

Wiersma, R. D.; Xing, L. [Department of Radiation Oncology, Stanford University School of Medicine, Stanford, California 94305-5847 (United States)

2007-10-15T23:59:59.000Z

236

pressure | OpenEI  

Open Energy Info (EERE)

pressure pressure Dataset Summary Description This raw data reflects readings from instruments mounted on or near a 82 meter meteorological tower located at the National Wind Technology Center (NWTC), approximately 5 miles south of Boulder, CO (specifically: 39.9107 N, 105.2348 W, datum WGS84). The base elevation at the site is 1,855 meters AMSL. Source NREL Date Released Unknown Date Updated March 10th, 2011 (3 years ago) Keywords DOE humidity irrandiance NREL NWTC pressure temperature turbulence wind wind direction wind speed Data text/plain icon Raw data (8/24/2001 - 3/10/2011) (txt, 681 KiB) application/vnd.ms-excel icon Field IDs for above .txt file (xls, 69.6 KiB) Quality Metrics Level of Review Some Review Comment Scientists and Technicians are notified real-time via email of instruments outside the above min/max or delta comparisons (http://www.nrel.gov/midc/nwtc_m2/) Data have not been reviewed for accuracy or completeness; disclaimer available (http://www.nrel.gov/disclaimer.html).

237

Pressure analysis for horizontal wells  

SciTech Connect (OSTI)

This paper presents horizontal-well test design and interpretation methods. Analytical solutions are developed that can be handled easily by a desktop computer to carry out design as well as interpretation with semilog and log-log analysis. These analytical solutions point out the distinctive behavior of horizontal wells: (1) at early time, there is a circular radial flow in a vertical plane perpendicular to the well, and (2) at late time, there is a horizontal pseudoradial flow. Each type of flow is associated with a semilog straight line to which semilog analysis has to be adapted. The horizontal pseudoradial flow takes into account a pseudoskin depending on system geometry, which is a priori defined and estimated. Practical time criteria are proposed to determine the beginning and the end of each type of flow and to provide a guide to semilog analysis and well test design. The authors study the behavior of uniform-flux or infinite-conductivity horizontal wells, with wellbore storage and skin. The homogeneous reservoir is infinite or limited by impermeable or constant-pressure boundaries. A method is also outlined to transform all our solutions for homogeneous reservoirs into corresponding solutions for double-porosity reservoirs.

Davlau, F.; Mouronval, G.; Bourdarot, G.; Curutchet, P.

1988-12-01T23:59:59.000Z

238

Oak Ridge Office SharePoint( MicrosoftSHarePointServer) PIA,...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

SharePoint( MicrosoftSHarePointServer) PIA, Information Resourses Management Division Oak Ridge Office SharePoint( MicrosoftSHarePointServer) PIA, Information Resourses Management...

239

Detecting determinism from point processes  

Science Journals Connector (OSTI)

The detection of a nonrandom structure from experimental data can be crucial for the classification, understanding, and interpretation of the generating process. We here introduce a rank-based nonlinear predictability score to detect determinism from point process data. Thanks to its modular nature, this approach can be adapted to whatever signature in the data one considers indicative of deterministic structure. After validating our approach using point process signals from deterministic and stochastic model dynamics, we show an application to neuronal spike trains recorded in the brain of an epilepsy patient. While we illustrate our approach in the context of temporal point processes, it can be readily applied to spatial point processes as well.

Ralph G. Andrzejak; Florian Mormann; Thomas Kreuz

2014-12-02T23:59:59.000Z

240

Congressional Affairs Points of Contact  

Broader source: Energy.gov [DOE]

Lists the Office of Congressional Affairs points of contacts. The Office of Congressional Affairs is available to assist congressional offices and committees regarding Department of Energy programs and activities.

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Differential pressure pin discharge apparatus  

DOE Patents [OSTI]

Disclosed is a discharge assembly for allowing elongate pins to be discharged from an area of relatively low pressure to an area of relatively greater pressure. The discharge assembly includes a duck valve having a lip piece made of flexible material. The flexible lip piece responds to a fluctuating pressure created downstream by an aspirator. The aspirator reduces the downstream pressure sensed by the duck valve when the discharge assembly is in the open position. This allows elongate pins to be moved through the duck valve with no backflow because the aspirator pressure is less than the pressure in the low pressure area from which the pins originate. Closure of the assembly causes the aspirator static pressure to force the flexible duck valve lip piece into a tightly sealed position also preventing backflow. The discharge assembly can be easily controlled using a single control valve which blocks the flow of aspirator gas and closes the pin passageway extending through the assembly.

Oakley, David J. (Richland, WA)

1987-01-01T23:59:59.000Z

242

High-Pressure Hydrogen Tanks  

Broader source: Energy.gov [DOE]

Presentation on High-Pressure Hydrogen Tanks for the DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project Review Meeting held February 8-9, 2005 at Argonne National Laboratory

243

Robot positioning based on point-to-point motion capability  

SciTech Connect (OSTI)

This paper presents an optimal search method for determining the base location of a robot manipulator so that the robot can have a designated point-to-point (PTP) motion capabilities. Based on the topological characterization of the manipulator workspace and the definitions of various p-connectivity, a computational method is developed for enumerating various PTP motion capabilities into quantitative cost functions. Then an unconstrained search by minimizing the cost function yields the task feasible location of the robot base. This methodology is useful for placement of mobile manipulators and robotic workcell layout design.

Park, Y. S.; Cho, H. S.; Koh, K. C.

2000-03-20T23:59:59.000Z

244

MAXIMUM ADDITIONAL SCORE: 2 points Description  

E-Print Network [OSTI]

; Many-Core Accelerator Architectures 1. A Performance and Energy Comparison of Convolution on GPUs in Production Processors via Software-Guided Thread Scheduling 7. Power Gating Strategies on GPUs #12; Network. #12;1. For a given simulator record its input parameters and its output metrics. 2. Experiment

Silvano, Cristina

245

Stripline microchannel plate image intensifier tubes (MCPTS) for nanosecond optical gating applications  

SciTech Connect (OSTI)

Shuttering characteristics of low impedance stripline geometry microchannel plate image intensifier tubes (MCPTs) with 50% transmissive nickel undercoated S-20 photocathodes are discussed. Iris-free shutter sequences with 50 to 75 micron resolution at optical gate times of 500ps to 2ns were measured for typical samples from two manufacturers. Shutter sequences clearly showing gate pulse propagation velocities for this MCPT design when externally driven by impedance matched circuitry are contrasted with non-directional sequences obtained from unmatched coupling of the gate pulse. 7 refs., 7 figs.

Yates, G.J.; Jaramillo, S.A.; Zagarino, P.; Thomas, M.

1986-01-01T23:59:59.000Z

246

Gates controlled parallel-coupled double quantum dot on both single layer and bilayer graphene  

E-Print Network [OSTI]

Here we report the fabrication and quantum transport measurements of gates controlled parallel-coupled double quantum dot on both bilayer and single layer graphene. It is shown that the interdot coupling strength of the parallel double dots can be effectively tuned from weak to strong regime by both the in-plane plunger gates and back gate. All the relevant energy scales and parameters of the graphene parallel-coupled double dot can be extracted from the honeycomb charge stability diagrams revealed through the transport measurements.

Lin-Jun Wang; Guo-Ping Guo; Da Wei; Gang Cao; Tao Tu; Ming Xiao; Guang-Can Guo; A. M. Chang

2011-04-22T23:59:59.000Z

247

Integrating respiratory gating into a megavoltage cone-beam CT system  

SciTech Connect (OSTI)

We have previously described a low-dose megavoltage cone beam computed tomography (MV CBCT) system capable of producing projection image using one beam pulse. In this study, we report on its integration with respiratory gating for gated radiotherapy. The respiratory gating system tracks a reflective marker on the patient's abdomen midway between the xiphoid and umbilicus, and disables radiation delivery when the marker position is outside predefined thresholds. We investigate two strategies for acquiring gated scans. In the continuous rotation-gated acquisition, the linear accelerator (LINAC) is set to the fixed x-ray mode and the gantry makes a 5 min, 360 deg.continuous rotation, during which the gating system turns the radiation beam on and off, resulting in projection images with an uneven distribution of projection angles (e.g., in 70 arcs each covering 2 deg.). In the gated rotation-continuous acquisition, the LINAC is set to the dynamic arc mode, which suspends the gantry rotation when the gating system inhibits the beam, leading to a slightly longer (6-7 min) scan time, but yielding projection images with more evenly distributed projection angles (e.g., {approx}0.8 deg.between two consecutive projection angles). We have tested both data acquisition schemes on stationary (a contrast detail and a thoracic) phantoms and protocol lung patients. For stationary phantoms, a separate motion phantom not visible in the images is used to trigger the RPM system. Frame rate is adjusted so that approximately 450 images (13 MU) are acquired for each scan and three-dimensional tomographic images reconstructed using a Feldkamp filtered backprojection algorithm. The gated rotation-continuous acquisition yield reconstructions free of breathing artifacts. The tumor in parenchymal lung and normal tissues are easily discernible and the boundary between the diaphragm and the lung sharply defined. Contrast-to-noise ratio (CNR) is not degraded relative to nongated scans of stationary phantoms. The continuous rotation-gated acquisition scan also yields tomographic images with discernible anatomic features; however, streak artifacts are observed and CNR is reduced by approximately a factor of 4. In conclusion, we have successfully developed a gated MV CBCT system to verify the patient positioning for gated radiotherapy.

Chang Jenghwa; Sillanpaa, Jussi; Ling, Clifton C.; Seppi, Edward; Yorke, Ellen; Mageras, Gikas; Amols, Howard [Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York 10021 (United States); Ginzton Technology Center, Varian Medical Systems, Mountain View, California 94043 (United States); Department of Medical Physics, Memorial Sloan-Kettering Cancer Center, New York, New York 10021 (United States)

2006-07-15T23:59:59.000Z

248

Demonstration of a fully tuneable entangling gate for continuous-variable one-way quantum computation  

E-Print Network [OSTI]

We introduce a fully tuneable entangling gate for continuous-variable one-way quantum computation. We present a proof-of-principle demonstration by propagating two independent optical inputs through a three-mode linear cluster state and applying the gate in various regimes. The genuine quantum nature of the gate is confirmed by verifying the entanglement strength in the output state. Our protocol can be readily incorporated into efficient multi-mode interaction operations in the context of large-scale one-way quantum computation, as our tuning process is the generalisation of cluster state shaping.

Shota Yokoyama; Ryuji Ukai; Seiji C. Armstrong; Jun-ichi Yoshikawa; Peter van Loock; Akira Furusawa

2014-10-02T23:59:59.000Z

249

Temperature dependence of plasmonic terahertz absorption in grating-gate gallium-nitride transistor structures  

Science Journals Connector (OSTI)

Strong plasmon resonances have been observed in the terahertz transmission spectra (15 THz) of large-area slit-grating-gate AlGaN/GaN-based high-electron-mobility transistor(HEMT) structures at temperatures from 10 to 170 K. The resonance frequencies correspond to the excitation of plasmons with wave vectors equal to the reciprocal lattice vectors of the metal grating which serves both as a gate electrode for the HEMT and a coupler between plasmons and incident terahertz radiation. Wide tunability of the resonances by the applied gate voltage demonstrates potential of these devices for terahertz applications.

A. V. Muravjov; D. B. Veksler; V. V. Popov; O. V. Polischuk; N. Pala; X. Hu; R. Gaska; H. Saxena; R. E. Peale; M. S. Shur

2010-01-01T23:59:59.000Z

250

Spectroscopic measurement of the vapour pressure of ice  

Science Journals Connector (OSTI)

...Murphy Meeting Issue Water in the gas phase . We...triple-point state of water and uses frequency-stabilized...temperature-regulated standard humidity generator, which contains ice...within 0.35 per cent. water vapour|ice vapour pressure...technical fields. In atmospheric physics, ice crystals...

2012-01-01T23:59:59.000Z

251

Resumming the pressure  

E-Print Network [OSTI]

The convergence properties of the resummed thermal perturbation series for the thermodynamic pressure are investigated by comparison with the exact results obtained in large-N phi^4 theory and possibilities for improvements are discussed. By going beyond conventional resummed perturbation theory, renormalization has to be carried out nonperturbatively yet consistently. This is exemplified in large-N phi^4_4 and in a special large-N \\phi^3_6 model that mimics QED in the limit of large flavour number.

Anton Rebhan

1998-09-21T23:59:59.000Z

252

Combustor oscillation pressure stabilizer  

SciTech Connect (OSTI)

In accordance with the objective of the present invention, the active control of unsteady combustion induced oscillations in a combustion chamber fired by a suitable fuel and oxidizer mixture, such as a hydrocarbon fuel and air mixture, is provided by restructuring and moving the position of the main flame front and thereby increasing the transport time and displacing the pressure wave further away from the in-phase relationship with the periodic heat release. The restructuring and repositioning of the main flame are achieved by utilizing a pilot flame which is pulsed at a predetermined frequency corresponding to less than about one-half the frequency of the combustion oscillation frequency with the duration of each pulse being sufficient to produce adequate secondary thermal energy to restructure the main flame and thereby decouple the heat release from the acoustic coupling so as to lead to a reduction in the dynamic pressure amplitude. The pulsating pilot flame produces a relatively small and intermittently existing flame front in the combustion zone that is separate from the oscillating main flame front but which provides the thermal energy necessary to effectively reposition the location of the oscillating main flame front out of the region in the combustion zone where the acoustic coupling can occur with the main flame and thereby effectively altering the oscillation-causing phase relationship with the heat of combustion.

Gemmen, R.S.; Richards, G.A.; Yip, M.T.J.; Robey, E.; Cully, S.R.; Addis, R.E.

1996-12-31T23:59:59.000Z

253

VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy |  

Broader source: Energy.gov (indexed) [DOE]

VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy VIDEO: Bill Gates and Secretary Chu Chat on the Future of Energy March 5, 2012 - 1:24pm Addthis Secretary Chu sits down with Microsoft Founder and Chairman Bill Gates at the 2012 ARPA-E Energy Innovation Summit. April Saylor April Saylor Former Digital Outreach Strategist, Office of Public Affairs Last week, attendees at the 2012 ARPA-E Energy Innovation Summit heard from a variety of leaders from across the research, business and government sectors who spoke at the conference of nearly 2,400. These speakers, along with the startup companies and innovators in attendance, converged outside of Washington, D.C., to offer their take on how America can tackle our energy challenges. One of the top-level highlights from the Summit included this fireside chat

254

Thermosensitive gating effect and selective gas adsorption in a porous coordination nanocage  

SciTech Connect (OSTI)

A porous coordination nanocage functionalized with 24 triisopropylsilyl groups exhibits a remarkable thermosensitive gate opening phenomenon and demonstrates a molecular sieving effect at a certain temperature range, which can be used for gas separation purposes.

Zhao, Dan; Yuan, Daqiang; Krishna, Rajamani; van Baten, Jasper M.; Zhou, Hong-Cai (TAM); (U. Amsterdam)

2010-10-22T23:59:59.000Z

255

Thermosensitive gating effect and selective gas adsorption in a porous coordination nanocage  

SciTech Connect (OSTI)

A porous coordination nanocage functionalized with 24 triisopropylsilyl groups exhibits a remarkable thermosensitive gate opening phenomenon and demonstrates a molecular sieving effect at a certain temperature range, which can be used for gas separation purposes.

Zhao, Dan; Yuan, Daqiang; Krishna, Rajamani; van Baten, Jasper M; Zhou, Hong-Cai

2010-01-01T23:59:59.000Z

256

Vehicle Technologies Office Merit Review 2014: GATE: Energy Efficient Vehicles for Sustainable Mobility  

Broader source: Energy.gov [DOE]

Presentation given by Ohio State University at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about GATE: energy efficient...

257

Vehicle Technologies Office Merit Review 2014: DOE GATE Center of Excellence in Sustainable Vehicle Systems  

Broader source: Energy.gov [DOE]

Presentation given by Clemson University at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about DOE GATE Center of...

258

A linear programming solution to the gate assignment problem at airport terminals  

E-Print Network [OSTI]

This research solves the flight-to-gate assignment problem at airports in such a way as to minimize, or at least reduce, walking distances for passengers inside terminals. Two solution methods are suggested. The first is ...

Mangoubi, Rami

1980-01-01T23:59:59.000Z

259

E-Print Network 3.0 - arbitrary phase gates Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

<< < 1 2 3 4 5 > >> Page: << < 1 2 3 4 5 > >> 41 Optical simulation of quantum logic N. J. Cerf,1 Summary: of universal quantum gates using simple optical components beam...

260

Simple template-based method to produce bradbury-nielsen gates  

Science Journals Connector (OSTI)

A Bradbury-Nielsen gate (BNG) consists of two interleaved...m with minimal use of a microscope. The small wire spacing allows modulation rates at tens of megahertz. Using this method, we have fabricated four BNG...

Oh Kyu Yoon; Ignacio A. Zuleta

2007-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Process fidelity estimation of linear optical quantum CZ gate: A comparative study  

E-Print Network [OSTI]

We present a systematic comparison of different methods of fidelity estimation of a linear optical quantum controlled-Z gate implemented by two-photon interference on a partially polarizing beam splitter. We have utilized a linear fidelity estimator based on the Monte Carlo sampling technique as well as a non-linear estimator based on maximum likelihood reconstruction of a full quantum process matrix. In addition, we have also evaluated lower bound on quantum gate fidelity determined by average quantum state fidelities for two mutually unbiased bases. In order to probe various regimes of operation of the gate we have introduced a tunable delay line between the two photons. This allowed us to move from high-fidelity operation to a regime where the photons become distinguishable and the success probability of the scheme significantly depends on input state. We discuss in detail possible systematic effects that could influence the gate fidelity estimation.

M. Micuda; M. Sedlak; I. Straka; M. Mikova; M. Dusek; M. Jezek; J. Fiurasek

2014-03-19T23:59:59.000Z

262

Ligand-Gated Chloride Channels Are Receptors for Biogenic Amines in C. elegans  

E-Print Network [OSTI]

Biogenic amines such as serotonin and dopamine are intercellular signaling molecules that function widely as neurotransmitters and neuromodulators. We have identified in the nematode Caenorhabditis elegans three ligand-gated ...

Ringstad, Niels

263

Synthesis of reversible functions using various gate libraries and design specifications  

Science Journals Connector (OSTI)

This dissertation is devoted to efficient automated logic synthesis of reversible circuits using various gate types and initial specifications. These Reversible circuits are of interest to several modern technologies, including Nanotechnology, ...

Nouraddin Alhagi / Marek Perkowski

2010-01-01T23:59:59.000Z

264

Gate-diffusion input (GDI): a power-efficient method for digital combinatorial circuits  

Science Journals Connector (OSTI)

Gate diffusion input (GDI) - a new technique of low-power digital combinatorial circuit design - is described. This technique allows reducing power consumption, propagation delay, and area of digital circuits while maintaining low complexity of logic ...

A. Morgenshtein; A. Fish; I. A. Wagner

2002-10-01T23:59:59.000Z

265

Positions in the glun2c-containing nmdar regulate alcohol sensitivity and ion channel gating.  

E-Print Network [OSTI]

?? The N-methyl-D-aspartate (NMDA) receptor, a subtype of glutamate-gated ion channel, has been shown to be a major target of ethanol in the central nervous (more)

Wu, Man

2014-01-01T23:59:59.000Z

266

A high-k ferroelectric relaxor terpolymer as a gate dielectric for orgnaic thin film transistors  

SciTech Connect (OSTI)

Poly(vinylidenefluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) is a ferroelectric terpolymer relaxor with a static dielectric constant of 50, which was developed using defect modification to eliminate remnant polarization in the normal ferroelectric PVDF. In this work, this solution processable terpolymer was used as the gate insulator in bottom gated organic thin-film transistors with a pentacene semiconductor layer. Due to the high dielectric constant of P(VDF-TrFE- CFE), a large capacitive coupling between the gate and channel can be achieved which causes a high charge concentration at the interface of the semiconductor and dielectric layers. In this device, an on/ off ratio of 104 and a low minimum operation gate voltage (5-10 V) were attained

Wu, Shan [Pennsylvania State University; Shao, Ming [ORNL; Burlingame, Quinn [Pennsylvania State University; Chen, Xiangzhong [Penn state university; Lin, Minren [Pennsylvania State University; Xiao, Kai [ORNL; Zhang, Qiming [Pennsylvania State University

2013-01-01T23:59:59.000Z

267

The pressure exerted by adsorbing directed lattice paths and staircase polygons  

E-Print Network [OSTI]

A directed path in the vicinity of a hard wall exerts pressure on the wall because of loss of entropy. The pressure at a particular point may be estimated by estimating the loss of entropy if the point is excluded from the path. In this paper we determine asymptotic expressions for the pressure on the X-axis in models of adsorbing directed paths in the first quadrant. Our models show that the pressure vanishes in the limit of long paths in the desorbed phase, but there is a non-zero pressure in the adsorbed phase. We determine asymptotic approximations of the pressure for finite length Dyck paths and directed paths, as well as for a model of adsorbing staircase polygons with both ends grafted to the X-axis.

E. J. Janse van Rensburg; T. Prellberg

2012-10-09T23:59:59.000Z

268

Stabilizing System Pressure | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

System Pressure This tip sheet summarizes three methods used to stabilize compressed air system pressure: adequate primary and secondary storage, PressureFlow Controllers (P...

269

AN AUTOZEROING FLOATING-GATE BANDPASS FILTER Paul Hasler, Bradley A. Minch, and Chris Diorio  

E-Print Network [OSTI]

is the thermal Figure 1: An autozeroing oating-gate ampli er AFGA that uses pFET hot-electron injection a bandpass oating-gate ampli er that uses tunneling and pFET hot-electron injection to set its DC operating the current through the pFET. Steady state occurs when the injection current is equal to the tunneling current

Diorio, Chris

270

Yield estimates and comparisons for full custom, standard cell, and gate array design methodologies  

E-Print Network [OSTI]

YIELD ESTIMATES AND COMPARISONS FOR FULL CUSTOM, STANDARD CELL, AND GATE ARRAY DESIGN METHODOLOGIES A Thesis by MARCELLA EVELYN NORTE Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE December 1990 Major Subject: Electrical Engineering YIELD ESTIMATES AND COMPARISONS FOR FULL CUSTOM, STANDARD CELL, AND GATE ARRAY DESIGN METHODOLOGIES A Thesis by MARCELLA EVELYN NORTE Approved...

Norte, Marcella Evelyn

2012-06-07T23:59:59.000Z

271

Sublimation Pressures of Solid Ar, Kr, and Xe  

Science Journals Connector (OSTI)

Results of an experiment to measure the sublimation pressures of Ar, Kr, and Xe over wide temperature and pressure ranges are presented. Data are reported from near the respective triple points to about (2.3 10-6 Torr, 25.506 K) for Ar; (2.1 10-4 Torr, 45.130 K) for Kr; (3.8 10-4 Torr, 70.075 K) for Xe. Pressures were measured with a Hg manometer, a McLeod gauge, and a calibrated Bourdon gauge. The data have been corrected for thermomolecular flow and streaming. Temperatures were measured with a N.B.S.-calibrated Pt resistance thermometer. The application of the law of corresponding states is investigated. Values for static lattice energy, geometric mean of the lattice vibrational spectrum, heat of sublimation, and lattice vibrational energy are calculated using theoretical sublimation pressure curves.

Charles W. Leming and Gerald L. Pollack

1970-10-15T23:59:59.000Z

272

Theoretical collapse pressures for two pressurized torispherical heads  

SciTech Connect (OSTI)

In order to determine the pressures at which real torispherical heads fail upon a single application of pressure, two heads were pressurized in recent Praxair tests, and displacements and strains were recorded at various locations. In this paper, theoretical results for the two test heads are presented in the form of curves of pressure versus crown deflections, using the available geometry and material parameters. From these curves, limit and collapse pressures are calculated, using procedures permitted by the ASME B and PV Code Section 8/Div.2. These pressures are shown to vary widely, depending on the method and model used to calculate them. The effect of no stress relief on the behavior of the Praxair test heads is also evaluated and found to be of no significance for neither the objectives of the tests nor the objectives of this paper. The results of this paper are submitted as an enhancement to the experimental results recorded during the Praxair tests.

Kalnins, A.; Updike, D.P. [Lehigh Univ., Bethlehem, PA (United States); Rana, M.D. [Praxair, Inc., Tonawanda, NY (United States). Research and Development Dept.

1995-12-01T23:59:59.000Z

273

Cradle and pressure grippers  

DOE Patents [OSTI]

A gripper that is designed to incorporate the functions of gripping, supporting and pressure tongs into one device. The gripper has two opposing finger sections with interlocking fingers that incline and taper to form a wedge. The interlocking fingers are vertically off-set so that the opposing finger sections may close together allowing the inclined, tapered tips of the fingers to extend beyond the plane defined by the opposing finger section's engagement surface. The range of motion defined by the interlocking relationship of the finger sections allows the gripper to grab, lift and support objects of varying size and shape. The gripper has one stationary and one moveable finger section. Power is provided to the moveable finger section by an actuating device enabling the gripper to close around an object to be lifted. A lifting bail is attached to the gripper and is supported by a crane that provides vertical lift.

Muniak, John E. (New York, NY)

2001-01-01T23:59:59.000Z

274

Phase-equilibria for design of coal-gasification processes: dew points of hot gases containing condensible tars. Final report  

SciTech Connect (OSTI)

This research is concerned with the fundamental physical chemistry and thermodynamics of condensation of tars (dew points) from the vapor phase at advanced temperatures and pressures. Fundamental quantitative understanding of dew points is important for rational design of heat exchangers to recover sensible heat from hot, tar-containing gases that are produced in coal gasification. This report includes essentially six contributions toward establishing the desired understanding: (1) Characterization of Coal Tars for Dew-Point Calculations; (2) Fugacity Coefficients for Dew-Point Calculations in Coal-Gasification Process Design; (3) Vapor Pressures of High-Molecular-Weight Hydrocarbons; (4) Estimation of Vapor Pressures of High-Boiling Fractions in Liquefied Fossil Fuels Containing Heteroatoms Nitrogen or Sulfur; and (5) Vapor Pressures of Heavy Liquid Hydrocarbons by a Group-Contribution Method.

Prausnitz, J.M.

1980-05-01T23:59:59.000Z

275

Logic gates at the surface code threshold: Superconducting qubits poised for fault-tolerant quantum computing  

E-Print Network [OSTI]

A quantum computer can solve hard problems - such as prime factoring, database searching, and quantum simulation - at the cost of needing to protect fragile quantum states from error. Quantum error correction provides this protection, by distributing a logical state among many physical qubits via quantum entanglement. Superconductivity is an appealing platform, as it allows for constructing large quantum circuits, and is compatible with microfabrication. For superconducting qubits the surface code is a natural choice for error correction, as it uses only nearest-neighbour coupling and rapidly-cycled entangling gates. The gate fidelity requirements are modest: The per-step fidelity threshold is only about 99%. Here, we demonstrate a universal set of logic gates in a superconducting multi-qubit processor, achieving an average single-qubit gate fidelity of 99.92% and a two-qubit gate fidelity up to 99.4%. This places Josephson quantum computing at the fault-tolerant threshold for surface code error correction. Our quantum processor is a first step towards the surface code, using five qubits arranged in a linear array with nearest-neighbour coupling. As a further demonstration, we construct a five-qubit Greenberger-Horne-Zeilinger (GHZ) state using the complete circuit and full set of gates. The results demonstrate that Josephson quantum computing is a high-fidelity technology, with a clear path to scaling up to large-scale, fault-tolerant quantum circuits.

R. Barends; J. Kelly; A. Megrant; A. Veitia; D. Sank; E. Jeffrey; T. C. White; J. Mutus; A. G. Fowler; B. Campbell; Y. Chen; Z. Chen; B. Chiaro; A. Dunsworth; C. Neill; P. O`Malley; P. Roushan; A. Vainsencher; J. Wenner; A. N. Korotkov; A. N. Cleland; John M. Martinis

2014-02-19T23:59:59.000Z

276

Correlation of gross tumor volume excursion with potential benefits of respiratory gating  

SciTech Connect (OSTI)

Purpose: To test the hypothesis that the magnitude of thoracic tumor motion can be used to determine the desirability of respiratory gating. Methods and materials: Twenty patients to be treated for lung tumors had computed tomography image data sets acquired under assisted breath hold at normal inspiration (100% tidal volume), at full expiration (0% tidal volume), and under free breathing. A radiation oncologist outlined gross tumor volumes (GTVs) on the breath-hold computed tomographic images. These data sets were registered to the free-breathing image data set. Two sets of treatment plans were generated: one based on an internal target volume explicitly formed from assessment of the excursion of the clinical target volume (CTV) through the respiratory cycle, representing an ungated treatment, and the other based on the 0% tidal volume CTV, representing a gated treatment with little margin for residual motion. Dose-volume statistics were correlated to the magnitude of the motion of the center of the GTV during respiration. Results: Patients whose GTVs were >100 cm{sup 3} showed little decrease in lung dose under gating. The other patients showed a correlation between the excursion of the center of the GTV and a reduction in potential lung toxicity. As residual motion increased, the benefits of respiratory gating increased. Conclusion: Gating seems to be advantageous for patients whose GTVs are <100 cm{sup 3} and for whom the center of the GTV exhibits significant motion, provided residual motion under gating is kept small.

Starkschall, George [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)]. E-mail: gstarksc@mdanderson.org; Forster, Kenneth M. [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Kitamura, Kei [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Department of Radiology, Hokkaido University, Graduate School of Medicine, Sapporo (Japan); Cardenas, Alex [Department of Radiation Physics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Tucker, Susan L. [Department of Biomathematics, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States); Stevens, Craig W. [Department of Radiation Oncology, University of Texas M.D. Anderson Cancer Center, Houston, TX (United States)

2004-11-15T23:59:59.000Z

277

Magic State Distillation and Gate Compilation in Quantum Algorithms for Quantum Chemistry  

E-Print Network [OSTI]

Quantum algorithms for quantum chemistry map the dynamics of electrons in a molecule to the dynamics of a coupled spin system. To reach chemical accuracy for interesting molecules, a large number of quantum gates must be applied which implies the need for quantum error correction and fault-tolerant quantum computation. Arbitrary fault-tolerant operations can be constructed from a small, universal set of fault-tolerant operations by gate compilation. Quantum chemistry algorithms are compiled by decomposing the dynamics of the coupled spin-system using a Trotter formula, synthesizing the decomposed dynamics using Clifford operations and single-qubit rotations, and finally approximating the single-qubit rotations by a sequence of fault-tolerant single-qubit gates. Certain fault-tolerant gates rely on the preparation of specific single-qubit states referred to as magic states. As a result, gate compilation and magic state distillation are critical for solving quantum chemistry problems on a quantum computer. We review recent progress that has improved the efficiency of gate compilation and magic state distillation by orders of magnitude.

Colin J. Trout; Kenneth R. Brown

2015-01-07T23:59:59.000Z

278

CDIAC Atmospheric Pressure Data Sets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Atmospheric Pressure Atmospheric Pressure CDIAC Climate Holdings Containing Atmospheric Pressure Data Global Data Sets Data Set Name Investigators Data Type/Format Period of Record Global Historical Climatology Network (GHCN); Vs. 1 (CDIAC NDP-041) R.S. Vose et al. Surface stations; monthly mean sea-level pressure Varies by station; through 1990 Extended Edited Synoptic Cloud Reports from Ships and Land Stations Over the Globe, 1952-2009 (CDIAC NDP-026C) C.J. Hahn, S.G. Warren, and R. Eastman Six-hourly synoptic observations of sea-level pressure Land 1971-2009; Ocean 1952-2008 Global Historical Climatology Network (GHCN); Vs. 2 (Note: the above link takes you to NOAA's National Climatic Data Center website.) R.S. Vose et al. Surface stations; monthly mean sea-level pressure Varies by station; some through most recent month

279

Neutron scattering at high pressure  

Science Journals Connector (OSTI)

Neutron scattering spectra at pressures up to 30 kilobar in the temperature range 3004 K have been obtained with a compact clamped type apparatus. The pressure cell geometry by allowing the detection of neutronsscattered in a plane makes it compatible with operation on crystal spectrometers both for elastic and inelastic scattering. The instrument is light (4.5 kg) and easy to move. An external diameter of 68 mm makes the pressure cell adaptable to standard cryostats or furnaces.

D. Bloch; J. Paureau; J. Voiron; G. Parisot

1976-01-01T23:59:59.000Z

280

Atmospheric Pressure Deposition for Electrochromic Windows |...  

Broader source: Energy.gov (indexed) [DOE]

Atmospheric Pressure Deposition for Electrochromic Windows Atmospheric Pressure Deposition for Electrochromic Windows Emerging Technologies Project for the 2013 Building...

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

BP Cherry Point Congeneration Project  

Broader source: Energy.gov (indexed) [DOE]

REVISED 404 (B) (1) REVISED 404 (B) (1) ALTERNATIVES ANALYSIS BP Cherry Point Cogeneration Project Prepared for: BP West Coast Products, LLC Revised June 29, 2004 1501 Fourth Avenue, Suite 1400 Seattle, WA 98101-1616 (206) 438-2700 33749546.05070 i TABLE OF CONTENTS Page 1.0 I NT RODUCTI ON ................................................................................................................... 1 2.0 P URPOSE AND NEE D .......................................................................................................... 1 2.1 RELIABILITY .................................................................................................... 1 2.2 COST-EFFECTIVENESS ................................................................................... 3 2.3 SIZE OF FACILITY............................................................................................

282

Orientifold points in M theory  

Science Journals Connector (OSTI)

We identify the lift to M theory of the four types of orientifold points, and show that they involve a chiral fermion on an orbifold fixed circle. From this lift, we compute the number of normalizable ground states for the SO(N) and Sp(N) supersymmetric quantum mechanics with sixteen supercharges. The results agree with known results obtained by the mass deformation method. The mass of the orientifold is identified with the Casimir energy.

Amihay Hanany; Barak Kol; Arvind Rajaraman

1999-01-01T23:59:59.000Z

283

Pressure testing of torispherical heads  

SciTech Connect (OSTI)

Two vessels fabricated from SA516-70 steel with 6% knuckle radius torispherical heads were tested under internal pressure to failure. The D/t ratios of Vessel 1 and Vessel 2 were 238 and 185 respectively. The calculated maximum allowable working pressures of Vessel 1 and 2 heads using the ASME Section 8, Div. 1 rules and measured dimensions were 85 and 110 psi, respectively. Vessel 1 failed at a nozzle weld in the cylindrical shell at 700 psi pressure. Neither buckling nor any other objectionable deformation of the head was observed at a theoretical double-elastic-slope collapse pressure of 241 and a calculated buckling pressure of 270 psi. Buckles were observed developing slowly after 600 psi pressure, and a total of 22 buckles were observed after the test, having the maximum amplitude of 0.15 inch. Vessel 2 failed at the edge of the longitudinal weld of the cylindrical shell at 1,080 psi pressure. Neither buckling nor any other objectionable deformation of the head was observed up to the final pressure, which exceeded the theoretical double-elastic-slope collapse and calculated buckling pressures of 274 psi and 342 psi, respectively.

Rana, M.D. [Praxair, Inc., Tonawanda, NY (United States). Research and Development Dept.; Kalnins, A.; Updike, D.P. [Lehigh Univ., Bethlehem, PA (United States)

1995-12-01T23:59:59.000Z

284

Universal single point liquid level sensor  

DOE Patents [OSTI]

A liquid level detector comprises a thermistor and circuitry for determining electrically if the thermistor is wet or dry and additionally, and continuously, if the thermistor is open or shorted. The voltage across the thermistor is filtered to remove low frequency electrical noise, then compared with a reference low voltage to determine if shorted and to a transition voltage chosen to be between the thermistor's normal wet and dry voltages to determine if the thermistor is wet or dry. The voltage is also compared to the supply voltage using a CMOS gate circuit element to determine if the thermistor is open. The gate passes both faults on to an LED to signal that a fault condition exists or indicates by another LED the wet or dry condition of the thermistor. A pump may be activated through a relay if the thermistor tests wet or dry, as desired. 1 figure.

Kronberg, J.W.

1992-10-27T23:59:59.000Z

285

Universal single point liquid level sensor  

DOE Patents [OSTI]

A liquid level detector comprises a thermistor and circuitry for determining electrically if the thermistor is wet or dry and additionally, and continuously, if the thermistor is open or shorted. The voltage across the thermistor is filtered to remove low frequency electrical noise, then compared with a reference low voltage to determine if shorted and to a transition voltage chosen to be between the thermistor's normal wet and dry voltages to determine if the thermistor is wet or dry. The voltage is also compared to the supply voltage using a CMOS gate circuit element to determine if the thermistor is open. The gate passes both faults on to an LED to signal that a fault condition exists or indicates by another LED the wet or dry condition of the thermistor. A pump may be activated through a relay if the thermistor tests wet or dry, as desired.

Kronberg, James W. (353 Church Rd., Beech Island, SC 29842)

1992-01-01T23:59:59.000Z

286

Atomically flat La-silicate/Si interface using tungsten carbide gate electrode with nano-sized grain  

SciTech Connect (OSTI)

Interface properties of La-silicate gate dielectrics on Si substrates with W or nano-sized grain W{sub 2}C gate electrodes have been investigated. A low interface state density of 2.5??10{sup 11}?cm{sup ?2}/eV has been achieved with W{sub 2}C gate electrodes, which is one third of those with W gate electrode. An interface roughness of 0.33?nm with spatial frequency comparable to the grain size of W gate electrode has been observed. Besides, an atomically flat interface of 0.12?nm has been obtained with W{sub 2}C gate electrode. The origin of flat interface may be attributed to the elimination of inhomogeneous stress by grains in metal electrode.

Tuokedaerhan, K.; Natori, K.; Iwai, H. [Frontier Research Center, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503 (Japan); Kakushima, K., E-mail: kakushima@ep.titech.ac.jp; Kataoka, Y.; Nishiyama, A.; Sugii, N.; Wakabayashi, H.; Tsutsui, K. [Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502 (Japan)

2014-01-13T23:59:59.000Z

287

Pressure Vessel Burst Program: Automated hazard analysis for pressure vessels  

SciTech Connect (OSTI)

The design, development, and use of a Windows based software tool, PVHAZARD, for pressure vessel hazard analysis is presented. The program draws on previous efforts in pressure vessel research and results of a Pressure Vessel Burst Test Study. Prior papers on the Pressure Vessel Burst Test Study have been presented to the ASME, AIAA, JANNAF, NASA Pressure Systems Seminar, and to a DOD Explosives Safety Board subcommittee meeting. Development and validation is described for simplified blast (overpressure/impulse) and fragment (velocity and travel distance) hazard models. The use of PVHAZARD in making structural damage and personnel injury estimates is discussed. Efforts in-progress are reviewed including the addition of two-dimensional and three-dimensional (2D and 3D) hydrodynamic code analyses to supplement the simplified models, and the ability to assess barrier designs for protection from fragmentation.

Langley, D.R. [Aerospace Corp., Kennedy Space Center, FL (United States); Chrostowski, J.D. [ACTA Inc., Torrance, CA (United States); Goldstein, S. [Aerospace Corp., El Segundo, CA (United States); Cain, M. [General Physics Corp., Titusville, FL (United States)

1996-12-31T23:59:59.000Z

288

Field's Point Wastewater Treatment Facility (Narragansett Bay...  

Open Energy Info (EERE)

Field's Point Wastewater Treatment Facility (Narragansett Bay Commission) Jump to: navigation, search Name Field's Point Wastewater Treatment Facility (Narragansett Bay Commission)...

289

ChargePoint America | Department of Energy  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

ChargePoint America ChargePoint America 2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting...

290

Starting Points | National Nuclear Security Administration  

National Nuclear Security Administration (NNSA)

(M&O) Contract Competition Starting Points Starting Points Kansas City Plant Related Web Pages Summary Kansas City Plant Home Page Kansas City Plant Contracts DOE Directives...

291

Part I:Part I: Degradation in 3.2 nm Gate Oxides:Degradation in 3.2 nm Gate Oxides: Effects on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET  

E-Print Network [OSTI]

on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET Characteristics.2 nm Gate Oxides: Effects on Inverter Performance and MOSFETEffects on Inverter Performance and MOSFET

Anlage, Steven

292

Full-Swing Gate Diffusion Input logic-Case-study of low-power CLA adder design  

Science Journals Connector (OSTI)

Full Swing Gate Diffusion Input (FS-GDI) methodology is presented. The proposed methodology is applied to a 40nm Carry Look Ahead Adder (CLA). The CLA is implemented mainly using GDI full-swing F1 and F2 gates, which are the counterparts of standard ... Keywords: Alternative logic family, Carry Look Ahead (CLA) adder, Full-Swing GDI, Gate Difusion Input (GDI), Low power

Arkadiy Morgenshtein; Viacheslav Yuzhaninov; Alexey Kovshilovsky; Alexander Fish

2014-01-01T23:59:59.000Z

293

Electrokinetically pumped high pressure sprays  

DOE Patents [OSTI]

An electrokinetic pump capable of producing high pressure is combined with a nozzle having a submicron orifice to provide a high pressure spray device. Because of its small size, the device can be contained within medical devices such as an endoscope for delivering biological materials such as DNA, chemo therapeutic agents, or vaccines to tissues and cells.

Schoeniger, Joseph S. (Oakland, CA); Paul, Phillip H. (Livermore, CA); Schoeniger, Luke (Pittsford, NY)

2005-11-01T23:59:59.000Z

294

The prediction of formation volume factors of hydrocarbons at bubble point and flash separator pressures  

E-Print Network [OSTI]

4?52 6 ' 46 4 ' 45 3 ~ 75 2?95 6 ' 07 5 ' 66 6 ' 55 2?46 4?32 I ~ 88 I ~ 24 3 ~ 22 F 14 I ~ 63 I ~ 70 6 ' IZ I ~ 17 0 ~ 89 0 ~ 73 5 ' 24 3 ~ 86 6 ~ 57 7 ~ 72 8 ' 70 5 ' 05 F 00 5 ' 95 6 ' 33 F 07 4 ' 85 5 ' 87 6 ' 05...64 5 ' 93 4 ' 32 F 06 4 ' 55 2 ' 51 0 ' 47 5 ' 93 3 ' 53 2 ' 56 4 ' 94 0 ~ 88 F 08 0 ' 92 0 ' 92 F 80 I ~ 20 4 ' 25 3 ' 03 6 ' 89 6?30 Bi05 F 08 8 ' 92 5 ' 53 2 ' 87 2 ' 92 2 ' 09 7 ' 48 5 ' 95 6 ' 93 6 ' 19 4 ' 60 0...

Crownover, Allen Norris

1962-01-01T23:59:59.000Z

295

Pressure-sensitive blackbody point radiation induced by infrared diode laser irradiation  

E-Print Network [OSTI]

Laboratory of Sono- and Photo-theranostic Technology, Harbin Institute of Technology, Harbin 150001, China 3

Cao, Wenwu

296

VT PowerPoint Template  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

EMBEDDED ACTIVE FIBER OPTIC SENSING EMBEDDED ACTIVE FIBER OPTIC SENSING NETWORK FOR STRUCTURAL HEALTH MONITORING IN HARSH ENVIRONMENTS DE-FE0007405 Anbo Wang, Cheng Ma Virginia Tech Center for Photonics Technology Blacksburg, VA 24061 awang@vt.edu, cma1@vt.edu http://photonics.ece.vt.edu/ 1 Advanced Research Sensor and Controls Project Review Meeting DOE NETL Morgantown, WV 03/12/2012 Outline * Motivation, Overview & Objectives * Background and Fundamentals of Proposed Technology * Project Scope and Work Plan 2 MOTIVATION AND OBJECTIVES 3 Motivation * Non-Destructive Evaluation (NDE) of structural health in advanced energy systems. Examples: * Ultra Supercritical (USC) systems: * Steam temperature 760 o C, pressure 5000 psi. * Integrated Gasification Combined Cycle (IGCC):

297

High-Pressure Hydrogen Tanks  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

February 8 February 8 th , 2005 Mark J. Warner, P.E. Principal Engineer Quantum Technologies, Inc. Irvine, CA Low Cost, High Efficiency, Low Cost, High Efficiency, High Pressure Hydrogen Storage High Pressure Hydrogen Storage This presentation does not contain any proprietary or confidential information. 70 MPa Composite Tanks Vent Line Ports Defueling Port (optional) Fill Port Filter Check Valve Vehicle Interface Bracket with Stone Shield In Tank Regulator with Solenoid Lock-off Pressure Relief Device Manual Valve Compressed Hydrogen Storage System In-Tank Regulator Pressure Sensor (not visible here) Pressure Relief Device (thermal) In Tank Gas Temperature Sensor Carbon Composite Shell (structural) Impact Resistant Outer Shell (damage resistant) Gas Outlet Solenoid Foam Dome (impact protection)

298

NETL: Pressure Swing Absorption Device  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pressure Swing Absorption Device and Process for Separating CO2 from Shifted Syngas and its Capture for Subsequent Storage Pressure Swing Absorption Device and Process for Separating CO2 from Shifted Syngas and its Capture for Subsequent Storage Project No.: DE-FE0001323 New Jersey Institute of Technology is developing an advanced pressure swing absorption-based (PSAB) device via laboratory-based experiments. The device will be used to accomplish a cyclic process to process low temperature post-shift-reactor synthesis gas resulting from the gasification process into purified hydrogen at high pressure for use by the combustion turbine of an integrated gasification combined cycle (IGCC) plant. The overall goal of the proposed work is to develop an advanced PSAB device and cyclic process for use in a coal-fired IGCC plant to produce purified hydrogen at high pressure and a highly purified CO2 stream suitable for use or sequestration.

299

Fundamentals of high pressure adsorption  

SciTech Connect (OSTI)

High-pressure adsorption attracts research interests following the world's attention to alternative fuels, and it exerts essential effect on the study of hydrogen/methane storage and the development of novel materials addressing to the storage. However, theoretical puzzles in high-pressure adsorption hindered the progress of application studies. Therefore, the present paper addresses the major theoretical problems that challenged researchers: i.e., how to model the isotherms with maximum observed in high-pressure adsorption; what is the adsorption mechanism at high pressures; how do we determine the quantity of absolute adsorption based on experimental data. Ideology and methods to tackle these problems are elucidated, which lead to new insights into the nature of high-pressure adsorption and progress in application studies, for example, in modeling multicomponent adsorption, hydrogen storage, natural gas storage, and coalbed methane enrichment, was achieved.

Zhou, Y.P.; Zhou, L. [Tianjin University, Tianjin (China). High Pressure Adsorption Laboratory

2009-12-15T23:59:59.000Z

300

atmospheric pressure | OpenEI  

Open Energy Info (EERE)

pressure pressure Dataset Summary Description (Abstract):Atmospheric Pressure (kPa)NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly & Annual Average (July 1983 - June 2005)Parameter: Atmospheric Pressure (kPa)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region Source U.S. National Aeronautics and Space Administration (NASA), Surface meteorology and Solar Energy (SSE) Date Released March 31st, 2009 (5 years ago) Date Updated Unknown Keywords atmospheric pressure climate NASA SWERA UNEP Data text/csv icon Download Data (csv, 46 MiB)

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Dissociation of human thalamic and cortical SEP gating as revealed by intrathalamic recordings under muscle relaxation  

Science Journals Connector (OSTI)

Gating refers to a reduction of cortical somatosensory evoked potentials (SEP) under multiple simultaneous afferent inputs. This study used the opportunity for intrathalamic recordings in patients with movement disorders to clarify to what extent cortical SEP gating is preceded by thalamic gating. Recordings were performed in 10 patients, narcotised by intravenous propofol when receiving implantation of a therapeutic deep brain stimulator system. SEP were elicited by an 8.1-Hz median nerve stimulation at twice motor threshold and were recorded simultaneously from both intrathalamic and scalp electrodes before and after the application of the depolarising muscle blocker succinylcholine which eliminated both the background muscular tone and the repetitive muscle twitches caused by the median nerve stimulation. Peripheral compound action potentials recorded at the upper arm remained unchanged after complete muscle relaxation, proving a continuously effective nerve stimulation. In contrast, the primary cortical SEP component (N20) was significantly increased under succinylcholine (+17%). This cortical release from gating was not paralleled, however, by an increased thalamic response; rather, the primary thalamic response (P16) showed a slight (?9%) but highly significant amplitude reduction. As the recordings were performed in narcotised patients, any potentially variable attentional bias on part of the subjects can be excluded as confounding factor when comparing the two experimental conditions with vs. without reafferent somatosensory inflow. Thus, given the high signal-to-noise ratio of intrathalamically recorded SEP, the present study shows a distinct thalamocortical dissociation with the primary somatosensory cortex representing the predominant level exhibiting SEP gating.

Fabian Klostermann; Ren Gobbele; Helmut Buchner; Gabriel Curio

2002-01-01T23:59:59.000Z

302

Beryllium pressure vessels for creep tests in magnetic fusion energy  

SciTech Connect (OSTI)

Beryllium has interesting applications in magnetic fusion experimental machines and future power-producing fusion reactors. Chief among the properties of beryllium that make these applications possible is its ability to act as a neutron multiplier, thereby increasing the tritium breeding ability of energy conversion blankets. Another property, the behavior of beryllium in a 14-MeV neutron environment, has not been fully investigated, nor has the creep behavior of beryllium been studied in an energetic neutron flux at thermodynamically interesting temperatures. This small beryllium pressure vessel could be charged with gas to test pressures around 3, 000 psi to produce stress in the metal of 15,000 to 20,000 psi. Such stress levels are typical of those that might be reached in fusion blanket applications of beryllium. After contacting R. Powell at HEDL about including some of the pressure vessels in future test programs, we sent one sample pressure vessel with a pressurizing tube attached (Fig. 1) for burst tests so the quality of the diffusion bond joints could be evaluated. The gas used was helium. Unfortunately, budget restrictions did not permit us to proceed in the creep test program. The purpose of this engineering note is to document the lessons learned to date, including photographs of the test pressure vessel that show the tooling necessary to satisfactorily produce the diffusion bonds. This document can serve as a starting point for those engineers who resume this task when funds become available.

Neef, W.S.

1990-07-20T23:59:59.000Z

303

PRESSURIZED SOLID OXIDE FUEL CELL/GAS TURBINE POWER SYSTEM  

SciTech Connect (OSTI)

Power systems based on the simplest direct integration of a pressurized solid oxide fuel cell (SOFC) generator and a gas turbine (GT) are capable of converting natural gas fuel energy to electric power with efficiencies of approximately 60% (net AC/LHV), and more complex SOFC and gas turbine arrangements can be devised for achieving even higher efficiencies. The results of a project are discussed that focused on the development of a conceptual design for a pressurized SOFC/GT power system that was intended to generate 20 MWe with at least 70% efficiency. The power system operates baseloaded in a distributed-generation application. To achieve high efficiency, the system integrates an intercooled, recuperated, reheated gas turbine with two SOFC generator stages--one operating at high pressure, and generating power, as well as providing all heat needed by the high-pressure turbine, while the second SOFC generator operates at a lower pressure, generates power, and provides all heat for the low-pressure reheat turbine. The system cycle is described, major system components are sized, the system installed-cost is estimated, and the physical arrangement of system components is discussed. Estimates of system power output, efficiency, and emissions at the design point are also presented, and the system cost of electricity estimate is developed.

W.L. Lundberg; G.A. Israelson; R.R. Moritz (Rolls-Royce Allison); S.E. Veyo; R.A. Holmes; P.R. Zafred; J.E. King; R.E. Kothmann (Consultant)

2000-02-01T23:59:59.000Z

304

Evaluation of aluminum critical point using an ab initio variational approach  

Science Journals Connector (OSTI)

We present a method to evaluate the critical point of aluminum using a variational approach based on the ab initio molecular-dynamics code CPMD. We found that the critical density, temperature, and pressure are equal to 0.44?g/cm3, 7963 K, and 0.35 GPa, respectively. At the critical point, the system is rarefied, coupled, and degenerate. The shear-viscosity and the self-diffusion were estimated at the critical point. Using the Kubo-Greenwood formula, we obtained the electrical conductivity, the absorption coefficient, the index of refraction, and the reflectivity at the critical point. We followed Motts ideas to study the metal-nonmetal transition related to the critical point. Our method can be useful to investigate phase transition and the critical point of metals.

Grald Faussurier, Christophe Blancard, and Pier Luigi Silvestrelli

2009-04-03T23:59:59.000Z

305

BP Cherry Point Cogeneration Project  

Broader source: Energy.gov (indexed) [DOE]

Final Environmental Impact Statement Final Environmental Impact Statement DOE/EIS-0349 Lead Agencies: Energy Facility Site Evaluation Council Bonneville Power Administration Cooperating Agency: U.S. Army Corps of Engineers August 2004 EFSEC Washington State Energy Facility Site Evaluation Council July 12, 2004 Dear Reader: Enclosed for your reference is the abbreviated Final Environmental Impact Statement (FEIS) for the proposed BP Cherry Point Cogeneration Project. This document is designed to correct information and further explain what was provided in the Draft Environmental Impact Statement (DEIS). The proponent, BP West Coast Products, LLC, has requested to build a 720-megawatt gas-fired combined cycle cogeneration facility in Whatcom County, Washington, and interconnect this facility into the regional

306

Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and  

Broader source: Energy.gov (indexed) [DOE]

Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders February 28, 2012 - 7:02am Addthis Washington D.C. - This week, the Advanced Research Projects Agency - Energy (ARPA-E) is hosting its third annual Energy Innovation Summit, which is designed to unite key players from all sectors of America's energy innovation community to share ideas for how to lead the world in the development of next generation clean energy technologies, develop our nation's energy resources, and build an American economy that lasts. Tomorrow's full agenda with speakers is below. For specific press requests, please contact Keri Fulton at keri.fulton@hq.doe.gov.

307

Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and  

Broader source: Energy.gov (indexed) [DOE]

Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders Day Two of 2012 ARPA-E Summit Will Feature Bill Gates, Secretary Chu and America's Top Energy Thought Leaders February 28, 2012 - 7:02am Addthis Washington D.C. - This week, the Advanced Research Projects Agency - Energy (ARPA-E) is hosting its third annual Energy Innovation Summit, which is designed to unite key players from all sectors of America's energy innovation community to share ideas for how to lead the world in the development of next generation clean energy technologies, develop our nation's energy resources, and build an American economy that lasts. Tomorrow's full agenda with speakers is below. For specific press requests, please contact Keri Fulton at keri.fulton@hq.doe.gov.

308

ARPA-E Announces 2012 Energy Innovation Summit Featuring Bill Gates, Fred  

Broader source: Energy.gov (indexed) [DOE]

Announces 2012 Energy Innovation Summit Featuring Bill Announces 2012 Energy Innovation Summit Featuring Bill Gates, Fred Smith and Lee Scott ARPA-E Announces 2012 Energy Innovation Summit Featuring Bill Gates, Fred Smith and Lee Scott September 9, 2011 - 9:25am Addthis New York, NY - The U.S. Department of Energy's Advanced Research Projects Agency - Energy (ARPA-E) Director, Arun Majumdar, announced yesterday that the Agency will hold its third annual ARPA-E Energy Innovation Summit from February 27 - 29, 2012 at the Gaylord Convention Center just outside Washington, D.C. Bill Gates, founder and chairman of Microsoft; Fred Smith, chairman, president and CEO of FedEx; and Lee Scott, former CEO of Wal-Mart; will join Secretary Chu and Director Majumdar as distinguished keynote speakers. "After two successful Summits, I'm excited to once again bring some of

309

Direct deposition of aluminum oxide gate dielectric on graphene channel using nitrogen plasma treatment  

SciTech Connect (OSTI)

Deposition of high-quality dielectric on a graphene channel is an essential technology to overcome structural constraints for the development of nano-electronic devices. In this study, we investigated a method for directly depositing aluminum oxide (Al{sub 2}O{sub 3}) on a graphene channel through nitrogen plasma treatment. The deposited Al{sub 2}O{sub 3} thin film on graphene demonstrated excellent dielectric properties with negligible charge trapping and de-trapping in the gate insulator. A top-gate-structural graphene transistor was fabricated using Al{sub 2}O{sub 3} as the gate dielectric with nitrogen plasma treatment on graphene channel region, and exhibited p-type transistor characteristics.

Lim, Taekyung; Kim, Dongchool; Ju, Sanghyun [Department of Physics, Kyonggi University, Suwon, Gyeonggi-Do 443-760 (Korea, Republic of)

2013-07-01T23:59:59.000Z

310

Photon-energy-dependent light effects in organic nano-floating-gate nonvolatile memories  

Science Journals Connector (OSTI)

Abstract A pentacene-based organic field-effect transistor nonvolatile memory, in which polystyrene covered Au nanoparticles act as the nano-floating-gate, is probed under different illumination conditions. The memory window can be greatly enlarged upon illumination depending on incident photon energy and intensity, and two light effects are proposed and discussed. The minority multiplication effect enhances the minority carrier tunneling into the nano-floating-gate, resulting in the remarkable positive VT shift. The excitation-induced injection effect is strongly photon energy dependent, and it is responsible for the significant negative VT shift. Appropriate illumination is favorable for reducing the programming/erasing voltage of organic nano-floating-gate nonvolatile memories.

Xu Gao; Chang-Hai Liu; Xiao-Jian She; Qin-Liang Li; Jie Liu; Sui-Dong Wang

2014-01-01T23:59:59.000Z

311

Radiation effects on reactor pressure vessel supports  

SciTech Connect (OSTI)

The purpose of this report is to present the findings from the work done in accordance with the Task Action Plan developed to resolve the Nuclear Regulatory Commission (NRC) Generic Safety Issue No. 15, (GSI-15). GSI-15 was established to evaluate the potential for low-temperature, low-flux-level neutron irradiation to embrittle reactor pressure vessel (RPV) supports to the point of compromising plant safety. An evaluation of surveillance samples from the High Flux Isotope Reactor (HFIR) at the Oak Ridge National Laboratory (ORNL) had suggested that some materials used for RPV supports in pressurized-water reactors could exhibit higher than expected embrittlement rates. However, further tests designed to evaluate the applicability of the HFIR data to reactor RPV supports under operating conditions led to the conclusion that RPV supports could be evaluated using traditional method. It was found that the unique HFIR radiation environment allowed the gamma radiation to contribute significantly to the embrittlement. The shielding provided by the thick steel RPV shell ensures that degradation of RPV supports from gamma irradiation is improbable or minimal. The findings reported herein were used, in part, as the basis for technical resolution of the issue.

Johnson, R.E. [Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering Technology; Lipinski, R.E. [Idaho National Engineering Lab., Rockville, MD (United States)

1996-05-01T23:59:59.000Z

312

High pressure liquid chromatographic method for CP amide analysis  

SciTech Connect (OSTI)

A method has been developed for the analysis of the 5-carboxamidotetrazolatopentaamminecobalt(III) perchlorate contaminant of the explosive CP (2-(5-cyanotetrazolato)-pentaamminecobalt(III) perchlorate). The analysis utilizes a Zn/Hg reduction of the cobalt (III) complexes to allow a high pressure liquid chromatographic (HPLC) analysis of the reaction products; the product analysis is directly related to the weight percent of impurity present in the explosive. The technique is described and shortcomings pointed out.

Loyola, V. M.; Womelsduff, J. E.

1981-02-01T23:59:59.000Z

313

A Laboratory Study of Pressure Losses in Residential Air Distribution  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Laboratory Study of Pressure Losses in Residential Air Distribution A Laboratory Study of Pressure Losses in Residential Air Distribution Systems Speaker(s): Bass Abushakra Date: March 7, 2002 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Duo Wang An experimental study was conducted to evaluate the pressure drop of residential air distribution system components that are either not available or poorly described in existing duct design literature. The tests were designed to imitate cases normally found in typical residential and light commercial installations. The study included three different sizes of flexible ducts, under different compression configurations, splitter boxes, supply boots, and a fresh air intake hood. The experimental tests apparatus followed ASHRAE Standard 120P - Methods of Testing to Determine Flow

314

Electrokinetic high pressure hydraulic system  

DOE Patents [OSTI]

An electrokinetic high pressure hydraulic pump for manipulating fluids in capillary-based systems. The pump uses electro-osmotic flow to provide a high pressure hydraulic system, having no moving mechanical parts, for pumping and/or compressing fluids, for providing valve means and means for opening and closing valves, for controlling fluid flow rate, and manipulating fluid flow generally and in capillary-based systems (Microsystems), in particular. The compact nature of the inventive high pressure hydraulic pump provides the ability to construct a micro-scale or capillary-based HPLC system that fulfills the desire for small sample quantity, low solvent consumption, improved efficiency, the ability to run samples in parallel, and field portability. Control of pressure and solvent flow rate is achieved by controlling the voltage applied to an electrokinetic pump.

Paul, Phillip H. (Livermore, CA); Rakestraw, David J. (Fremont, CA); Arnold, Don W. (Livermore, CA); Hencken, Kenneth R. (Pleasanton, CA); Schoeniger, Joseph S. (Oakland, CA); Neyer, David W. (Castro Valley, CA)

2001-01-01T23:59:59.000Z

315

Low pressure carbonylation of heterocycles  

DOE Patents [OSTI]

Heterocycles, e.g., epoxides, are carbonylated at low pressure with high percentage conversion to cyclic, ring expanded products using the catalyst ##STR00001## where L is tetrahydrofuran (THF).

Coates, Geoffrey W. (Lansing, NY); Kramer, John W. (Mt. Pleasant, MI); Schmidt, Joseph A. R. (Sylvania, OH)

2011-01-25T23:59:59.000Z

316

High Pressure Hydrogen Tank Manufacturing  

Broader source: Energy.gov (indexed) [DOE]

Cycles Fuel Lines * 10,000 psi nominal working pressure * O-ring face seal connections * CNC bent to CAD data * 316 Stainless Steel (Other materials available) * Welded end form or...

317

Pressure compensated flow control valve  

DOE Patents [OSTI]

The invention is an air flow control valve which is capable of maintaining a constant flow at the outlet despite changes in the inlet or outlet pressure. The device consists of a shell assembly with an inlet chamber and outlet chamber separated by a separation plate. The chambers are connected by an orifice. Also located within the inlet chamber is a port controller assembly. The port controller assembly consists of a differential pressure plate and port cap affixed thereon. The cap is able to slide in and out of the orifice separating the inlet and outlet chambers. When the pressure differential is sufficient, the differential pressure plate rises or falls to maintain a constant air flow. Movement of the port controller assembly does not require the use of seals, diaphragms, tight tolerances, bushings, bearings, hinges, guides, or lubricants.

Minteer, Daniel J. (West Richland, WA)

1999-01-01T23:59:59.000Z

318

BIOMACROMOLECULES UNDER HIGH HYDROSTATIC PRESSURE  

E-Print Network [OSTI]

of water into the protein rather than the transfer of hydrophobic residues into water. To investigate water. Gil Toombes for teaching me SAXS analysis and help with the pressure pump motor control, Buz Barstow

Gruner, Sol M.

319

Studying Materials Under Extreme Pressure  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Studying Materials Under Extreme Pressure Studying Materials Under Extreme Pressure Coupling undulator radiation from Advanced Photon Source (APS) beamlines 3-ID and 13-ID to nuclear resonant inelastic scattering techniques, researchers have determined the phonon density of states for iron under pressures up to 153 gigapascals, equivalent to those found at the Earth's core. Image of the Earth's core. Although indirect measurements and theory have, since the early 1950s, produced an informed picture of the structure and composition of the materials that make up the core of the Earth, direct proof and the answers to some intriguing questions remain unanswered. Previously, ultrahigh-pressure experiments using nuclear resonant inelastic scattering have been difficult to carry out due the tiny samples required.

320

Engineering a C-Phase quantum gate: optical design and experimental realization  

E-Print Network [OSTI]

A two qubit quantum gate, namely the C-Phase, has been realized by exploiting the longitudinal momentum (i.e. the optical path) degree of freedom of a single photon. The experimental setup used to engineer this quantum gate represents an advanced version of the high stability closed-loop interferometric setup adopted to generate and characterize 2-photon 4-qubit Phased Dicke states. Some experimental results, dealing with the characterization of multipartite entanglement of the Phased Dicke states are also discussed in detail.

Andrea Chiuri; Chiara Greganti; Paolo Mataloni

2012-04-12T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Electronic transport mechanisms in scaled gate-all-around silicon nanowire transistor arrays  

SciTech Connect (OSTI)

Low-frequency noise is used to study the electronic transport in arrays of 14?nm gate length vertical silicon nanowire devices. We demonstrate that, even at such scaling, the electrostatic control of the gate-all-around is sufficient in the sub-threshold voltage region to confine charges in the heart of the wire, and the extremely low noise level is comparable to that of high quality epitaxial layers. Although contact noise can already be a source of poor transistor operation above threshold voltage for few nanowires, nanowire parallelization drastically reduces its impact.

Clment, N., E-mail: nicolas.clement@iemn.univ-lille1.fr, E-mail: guilhem.larrieu@laas.fr; Han, X. L. [Institute of Electronics, Microelectronics and Nanotechnology, CNRS, Avenue Poincar, 59652 Villeneuve d'Ascq (France)] [Institute of Electronics, Microelectronics and Nanotechnology, CNRS, Avenue Poincar, 59652 Villeneuve d'Ascq (France); Larrieu, G., E-mail: nicolas.clement@iemn.univ-lille1.fr, E-mail: guilhem.larrieu@laas.fr [Laboratory for Analysis and Architecture of Systems (LAAS), CNRS, Universite de Toulouse, 7 Avenue Colonel Roche, 31077 Toulouse (France)

2013-12-23T23:59:59.000Z

322

Resilience of gated avalanche photodiodes against bright illumination attacks in quantum cryptography  

E-Print Network [OSTI]

Semiconductor avalanche photodiodes (APDs) are commonly used for single photon detection in quantum key distribution. Recently, many attacks using bright illumination have been proposed to manipulate gated InGaAs APDs. In order to devise effective counter-measures, careful analysis of these attacks must be carried out to distinguish between incorrect operation and genuine loopholes. Here, we show that correctly-operated, gated APDs are immune to continuous-wave illumination attacks, while monitoring the photocurrent for anomalously high values is a straightforward counter-measure against attacks using temporally tailored light.

Z. L. Yuan; J. F. Dynes; A. J. Shields

2011-06-14T23:59:59.000Z

323

A proposal for the implementation of quantum gates with photonic-crystal coupled cavity waveguides  

E-Print Network [OSTI]

Quantum computers require technologies that offer both sufficient control over coherent quantum phenomena and minimal spurious interactions with the environment. We show, that photons confined to photonic crystals, and in particular to highly efficient waveguides formed from linear chains of defects doped with atoms can generate strong non-linear interactions which allow to implement both single and two qubit quantum gates. The simplicity of the gate switching mechanism, the experimental feasibility of fabricating two dimensional photonic crystal structures and integrability of this device with optoelectronics offers new interesting possibilities for optical quantum information processing networks.

Dimitris G. Angelakis; Marcelo Franca Santos; Vassilis Yannopapas; Artur Ekert

2007-04-12T23:59:59.000Z

324

Microsoft PowerPoint - Proceedings Cover Sheets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pressure Monitoring Sensitivity of Pressure Monitoring Pressure Monitoring Sensitivity of Pressure Monitoring for Leak Detection for Leak Detection Sally M. Benson, Rob Sally M. Benson, Rob Trautz Trautz and and Chao Chao Shan Shan Earth Sciences Division Earth Sciences Division Lawrence Berkeley National Laboratory Lawrence Berkeley National Laboratory Berkeley, CA 94720 Berkeley, CA 94720 smbenson@lbl.gov smbenson@lbl.gov Basic Question Asked? Basic Question Asked? Do pressure transient measurements have the sensitivity Do pressure transient measurements have the sensitivity needed to detect significant leakage from the storage needed to detect significant leakage from the storage formation? formation? What are the most promising and cost effective What are the most promising and cost effective deployment approaches?

325

A procedure for localizing faults to specific gates using power supply transient signals is described. The method  

E-Print Network [OSTI]

of gates along sensitized paths from the composite transient signals measured at the power ports or C4s by a defect-free chip or simulation to identify the position of a defect. The transients produced at the C4sAbstract A procedure for localizing faults to specific gates using power supply transient signals

Plusquellic, James

326

Activation of the Inositol (1,4,5)-Triphosphate Calcium Gate Receptor Is Required for HIV-1 Gag Release  

Science Journals Connector (OSTI)

...27 Jagannath, A., and M. J. A. Wood. 2009. Localization of double-stranded...inositol (1,4,5)-triphosphate calcium gate receptor is required for HIV-1 Gag release...5)-triphosphate receptor (IP3R) gates intracellular Ca(2+) stores. Following...

Lorna S. Ehrlich; Gisselle N. Medina; Mahfuz B. Khan; Michael D. Powell; Katsuhiko Mikoshiba; Carol A. Carter

2010-04-28T23:59:59.000Z

327

Dominant-Negative Synthesis Suppression of Voltage-Gated Calcium Channel Cav2.2 Induced by Truncated Constructs  

E-Print Network [OSTI]

Dominant-Negative Synthesis Suppression of Voltage-Gated Calcium Channel Cav2.2 Induced, United Kingdom Voltage-gated calcium channel 1 subunits consist of four domains (I­IV), each with six by the cytoplasmic I-II loop of Cav2.2. It requires transmembrane seg- ments, because the isolated Cav2.2 N terminus

Dolphin, Annette C.

328

High-Performance Integrated Dual-Gate AlGaN/GaN Enhancement-Mode Transistor  

E-Print Network [OSTI]

In this letter, we present a new AlGaN/GaN enhancement-mode (E-mode) transistor based on a dual-gate structure. The dual gate allows the transistor to combine an E-mode behavior with low on-resistance and very high breakdown ...

Lu, Bin

329

Crystal Structure of the Mammalian GIRK2 KplusChannel and Gating Regulation by G Proteins PIP2 and Sodium  

SciTech Connect (OSTI)

G protein-gated K{sup +} channels (Kir3.1--Kir3.4) control electrical excitability in many different cells. Among their functions relevant to human physiology and disease, they regulate the heart rate and govern a wide range of neuronal activities. Here, we present the first crystal structures of a G protein-gated K{sup +} channel. By comparing the wild-type structure to that of a constitutively active mutant, we identify a global conformational change through which G proteins could open a G loop gate in the cytoplasmic domain. The structures of both channels in the absence and presence of PIP{sub 2} suggest that G proteins open only the G loop gate in the absence of PIP{sub 2}, but in the presence of PIP{sub 2} the G loop gate and a second inner helix gate become coupled, so that both gates open. We also identify a strategically located Na{sup +} ion-binding site, which would allow intracellular Na{sup +} to modulate GIRK channel activity. These data provide a structural basis for understanding multiligand regulation of GIRK channel gating.

M Whorton; R MacKinnon

2011-12-31T23:59:59.000Z

330

ECG-GATED C-ARM COMPUTED TOMOGRAPHY USING L1 REGULARIZATION Cyril Mory 1,3  

E-Print Network [OSTI]

ECG-GATED C-ARM COMPUTED TOMOGRAPHY USING L1 REGULARIZATION Cyril Mory 1,3 , Bo Zhang 3 , Vincent of the algorithm used for the minimization. Index Terms -- C-Arm, computed tomography, ECG- gating, augmented arises from the synchronization with the patient's electrocardiogram (ECG), which is necessary to avoid

Paris-Sud XI, Université de

331

Measuring the pressure in ultrahigh-pressure mercury arcs  

SciTech Connect (OSTI)

Ultrahigh-pressure (UHP) mercury lamps are important as high-brightness light sources for digital projection. Hg pressures are usually above 20 MPa and difficult to measure. We have built special UHP lamps with a liquid Hg condensate in a temperature-controlled reservoir, allowing us to tune the Hg vapor pressure p between 14 and 30 MPa. As a simple measure for p, we recorded the width DELTAlambda of the 546 nm Hg line while varying p and also the lamp current I and voltage U. The data define a function p(DELTAlambda,I,U) that will deliver p to better than 3% from simple measurements of DELTAlambda, I, and U for most UHP lamps in the important 100-200 W power range. The method is applied to sample lamps, yielding pressures up to 26 MPa and demonstrating how filled Hg amount, burning position, arc gap, and lamp power affect the pressure. The effective temperature of typical UHP lamps is found to be 2400 K. We also derive an improved characteristic U(d,p,I) for the dependence of the arc voltage on arc gap, pressure, and current for electrode-stabilized Hg discharges in the UHP regime. Some aspects of the experiment are of general interest in the field of discharge lamps, such as a model for the heat balance of the Hg condensate under conductive, radiative, and evaporative cooling/heating, a short discussion of high-temperature vapor-pressure data for Hg, and an improved Hg equation of state for UHP conditions.

Hechtfischer, U.; Engelbrecht, B.; Carpaij, M.; Fischer, E.; Koerber, A. [Philips Research Laboratories, Weisshausstrasse 2, 52066 Aachen (Germany)

2009-09-01T23:59:59.000Z

332

Determining Critical Pressure and Duct Leakage in VAV Air-Handling Units  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Determining Critical Pressure and Duct Leakage in VAV Air-Handling Units Determining Critical Pressure and Duct Leakage in VAV Air-Handling Units Speaker(s): Clifford Federspiel Date: December 3, 2003 - 12:00pm Location: Bldg. 90 Seminar Host/Point of Contact: Nance Matson Fans for moving air in buildings use a significant amount of energy. It is well known that fan energy use in variable-air-volume (VAV) systems can be reduced by resetting the supply duct pressure. The standard way to reset duct pressure is by controlling the most-open terminal damper to a nearly open position. Most systems can't measure terminal damper positions, so pressures are either not reset at all or use ad hoc resetting strategies that are configured sub-optimally. In this seminar I will describe a new method of determining the critical supply duct pressure for VAV systems.

333

Endografts, Pressure, and the Abdominal Aortic Aneurysm  

E-Print Network [OSTI]

surveillance protocols [28]. The relationship between peripheral arterial pressure and aortic pulse pressure was shown to be an underestimation of the pulse pressure within the abdominal aorta by a mean of 10% with a sphygmomanometer which was similar to a...

Meyer, Clark A.

2010-07-14T23:59:59.000Z

334

Electronic and optical properties of TiCoSb under different pressures  

SciTech Connect (OSTI)

The electronic structure and optical properties of TiCoSb are studied by the first-principles calculation. It is found that the band gaps increase with the pressure increasing. It is noted that the increase of the band gap is due to the electrons of Ti 3d and Co 3d of the valence band (VB) shifting away from the Fermi level. Our calculation indicates that TiCoSb has the large density of state near the Fermi level; moreover, the changes of the density of states near the Fermi level mainly are caused by Ti 3d and Co 3d under the different pressures. It is noted that the absorption edge increases with an increase of pressure. As pressure increases, the static dielectric constants {epsilon}{sub 1}(0) decrease. All peaks of the imaginary part of the dielectric function {epsilon}{sub 2}({omega}) move towards higher energies within increasing pressure. - Graphical abstract: The first peak positions of the absorption spectrum increase and shift the high energy with an increase of pressure. The buleshift of the absorption edge could be observed. Highlights: Black-Right-Pointing-Pointer It is noted that the increase of the band gap is due to the electrons of Ti 3d and Co 3d of VB moving away from the Fermi level. Black-Right-Pointing-Pointer It is noted that the absorption edge increases with an increase of pressure. Black-Right-Pointing-Pointer As pressure increases, the static dielectric constant {epsilon}{sub 1}(0) decreases. Black-Right-Pointing-Pointer All peaks of the imaginary part of the dielectric function {epsilon}{sub 2}({omega}) move to wards higher energies within creasing pressure.

Xu Bin, E-mail: hnsqxb@163.com [Department of Mathematics and Information Sciences, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011 (China); Zhang Jing [Department of Mathematics and Information Sciences, North China Institute of Water Conservancy and Hydroelectric Power, Zhengzhou 450011 (China); Liang Jianchu [Department of electronic science, Huizhou University, Guangdong 516001 (China); Gao Guoying; Yi Lin [Department of Physics, Huazhong University of Science and Technology, Wuhan 430074 (China)

2012-08-15T23:59:59.000Z

335

BROUWER'S FIXED POINT THEOREM JASPER DEANTONIO  

E-Print Network [OSTI]

BROUWER'S FIXED POINT THEOREM JASPER DEANTONIO Abstract. In this paper we prove Brouwer's Fixed be used to make three sequences which all have p as their limit point. Date: July 27, 2009. 1 #12;2 JASPER

May, J. Peter

336

Computation of multi-material interactions using point method  

SciTech Connect (OSTI)

Calculations of fluid flows are often based on Eulerian description, while calculations of solid deformations are often based on Lagrangian description of the material. When the Eulerian descriptions are used to problems of solid deformations, the state variables, such as stress and damage, need to be advected, causing significant numerical diffusion error. When Lagrangian methods are used to problems involving large solid deformat ions or fluid flows, mesh distortion and entanglement are significant sources of error, and often lead to failure of the calculation. There are significant difficulties for either method when applied to problems involving large deformation of solids. To address these difficulties, particle-in-cell (PIC) method is introduced in the 1960s. In the method Eulerian meshes stay fixed and the Lagrangian particles move through the Eulerian meshes during the material deformation. Since its introduction, many improvements to the method have been made. The work of Sulsky et al. (1995, Comput. Phys. Commun. v. 87, pp. 236) provides a mathematical foundation for an improved version, material point method (MPM) of the PIC method. The unique advantages of the MPM method have led to many attempts of applying the method to problems involving interaction of different materials, such as fluid-structure interactions. These problems are multiphase flow or multimaterial deformation problems. In these problems pressures, material densities and volume fractions are determined by satisfying the continuity constraint. However, due to the difference in the approximations between the material point method and the Eulerian method, erroneous results for pressure will be obtained if the same scheme used in Eulerian methods for multiphase flows is used to calculate the pressure. To resolve this issue, we introduce a numerical scheme that satisfies the continuity requirement to higher order of accuracy in the sense of weak solutions for the continuity equations. Numerical examples are given to demonstrate the new scheme.

Zhang, Duan Z [Los Alamos National Laboratory; Ma, Xia [Los Alamos National Laboratory; Giguere, Paul T [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

337

Microsoft PowerPoint - Stainless Presentation SWPA Meeting June...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

d Wi k t G t and Wicket Gates Dan Ramirez Dan Ramirez Chief Turbomachinery Section Hydroelectric Design Center 19 June 2014 US Army Corps of Engineers BUILDING STRONG USACE...

338

Team Total Points Beta Theta Pi 2271  

E-Print Network [OSTI]

Bubbles 40 Upset City 30 Team Success 30 #12;Team Total Points Sly Tye 16 Barringer 15 Fire Stinespring 15

Buehrer, R. Michael

339

Other Purdue Web points of Interest  

E-Print Network [OSTI]

Other Purdue Web points of interest. Purdue University Home Page --- Schedule of Classes Graduate School Agronomy Computer Science --- CS & E...

340

Flexible Pressure Sensors: Modeling and Experimental Characterization  

E-Print Network [OSTI]

Flexible capacitive pressure sensors fabricated with nanocomposites were experimentally characterized and results compared with simulations from analytical modeling. Unlike traditional diaphragm silicon pressure sensors, ...

Viana, J.C.

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

Site-Directed Amino Acid Substitutions in the Hydroxylase ? Subunit of Butane Monooxygenase from Pseudomonas butanovora: Implications for Substrates Knocking at the Gate  

Science Journals Connector (OSTI)

...intricacies of the leucine gate influence catalysis at...opening the leucine gate and shifting the geometry...where green is carbon, red is oxygen, blue is nitrogen...is through the leucine gate toward the diiron center...H. Shim, and T. K. Wood. 2002. Directed evolution...

Kimberly H. Halsey; Luis A. Sayavedra-Soto; Peter J. Bottomley; Daniel J. Arp

2006-07-01T23:59:59.000Z

342

Level Set Implementations on Unstructured Point Cloud  

E-Print Network [OSTI]

Level Set Implementations on Unstructured Point Cloud by HO, Hon Pong A Thesis Submitted;Level Set Implementations on Unstructured Point Cloud by HO, Hon Pong This is to certify that I have implementations on unstructured point cloud 15 3.1 Level set initialization

Duncan, James S.

343

Check Point NGX R65 Security Administration  

Science Journals Connector (OSTI)

Check Point NGX R65 is the next major release of Check Point's flagship firewall software product, which has over 750,000 registered users. Check Point's NGX is the underlying security software platform for all of the company's enterprise firewall, VPN ... Keywords: Operating Systems, Security

Ralph Bonnell

2008-03-01T23:59:59.000Z

344

Point-based multiscale surface representation  

Science Journals Connector (OSTI)

In this article we present a new multiscale surface representation based on point samples. Given an unstructured point cloud as input, our method first computes a series of point-based surface approximations at successively higher levels of smoothness, ... Keywords: Surface representations, geometric modeling, morphing, scale space, shape modeling, spectral filtering

Mark Pauly; Leif P. Kobbelt; Markus Gross

2006-04-01T23:59:59.000Z

345

Range Monitoring with Photo-points  

E-Print Network [OSTI]

Photo-points provide a way for owners/managers to monitor rangeland health with a minimum of time and expense. This publication explains when, where and how often to photograph rangeland points, how to set up a photo point, and how to interpret...

McGinty, Allan; White, Larry D.

1998-08-31T23:59:59.000Z

346

Nesting points in the sphere Dan Archdeacon  

E-Print Network [OSTI]

Nesting points in the sphere Dan Archdeacon Dept. of Computer Science University of Vermont) Abstract Let G be a graph embedded in the sphere. A k-nest of a point x not in G is a collection C 1 nested if each point not on the graph has a k-nest. In this paper we

Archdeacon, Dan

347

Ultrasonic bubble point sensor for petroleum fluids in remote and hostile environments  

Science Journals Connector (OSTI)

The bubble point is one of the most important physical properties of petroleum fluids. Present practice requires the shipment of samples to laboratories, a time-consuming process that compromises sample integrity. We have devised a method by which the bubble point can be estimated rapidly in a 5 mm diameter flow line immediately after a sample has been withdrawn from a subsurface rock formation. To measure the bubble point, the sample is isolated and depressurized. Measurement efficiency requires rapid depressurization, which often causes fluids to supersaturate. However, this problem can be mitigated by cavitation. We have found that it is possible to cavitate fluids at pressures of several megapascals, as long as the fluid is near its bubble point pressure. An ultrasonic transducer is used to simultaneously nucleate and detect bubbles at or near the thermodynamic bubble point. The cavitated bubbles produce fluctuations in the acoustic properties of the fluid that are detected in the near field or resonated volume of a transducer by measuring the fluctuations of the transducer's electrical properties. The variance of electrical properties increases by orders of magnitude in the presence of bubbles. The method has been demonstrated to work over a wide range of temperatures, pressures and fluids.

N W Bostrom; D D Griffin; R L Kleinberg; K K Liang

2005-01-01T23:59:59.000Z

348

Optimization of Pressurized Oxy4Combustion with Flameless Reactor  

SciTech Connect (OSTI)

Pressurized OxyECombustion is one of the most promising technologies for utilityEscale power generation plants. Benefits include the ability to burn low rank coal and capture C02. By increasing the flue gas pressure during this process, greater efficiencies are derived from increased quantity and quality of thermal energy recovery. UPA with modeling support from MIT and testing and data verification by Georgia Techs Research Center designed and built a 100kW system capable of demonstrating pressurized oxyEcombustion using a flameless combustor. Wyoming PRB coal was run at 15 and 32 bar. Additional tests were not completed but sampled data demonstrated the viability of the technology over a broader range of operating pressures, Modeling results illustrated a flat efficiency curve over 20 bar, with optimum efficiency achieved at 29 bar. This resulted in a 33% (HHV) efficiency, a 5 points increase in efficiency versus atmospheric oxyEcombustion, and a competitive cost of electricity plus greater C02 avoidance costs then prior studys presented. UPAs operation of the benchEscale system provided evidence that key performance targets were achieved: flue gas sampled at the combustor outlet had nonE detectable residual fly ashes, and low levels of SO3 and heavyEmetal. These results correspond to prior pressurized oxyEcombustion testing completed by IteaEEnel.

Malavasi, Massimo; Landegger, Gregory

2014-06-30T23:59:59.000Z

349

High pressure synthesis gas conversion. Task 3: High pressure profiles  

SciTech Connect (OSTI)

The purpose of this research project was to build and test a high pressure fermentation system for the production of ethanol from synthesis gas. The fermenters, pumps, controls, and analytical system were procured or fabricated and assembled in our laboratory. This system was then used to determine the effects of high pressure on growth and ethanol production by C. 1jungdahlii. The limits of cell concentration and mass transport relationships were found in CSTR and immobilized cell reactors (ICR). The minimum retention times and reactor volumes were found for ethanol production in these reactors.

Not Available

1993-05-01T23:59:59.000Z

350

Guardians at the Gates of Hell Estimating the Risk of Nuclear Theft and Terrorism  

E-Print Network [OSTI]

that pose the highest-priority risks of nuclear theft, and to evaluate policy approaches to strengtheningGuardians at the Gates of Hell Estimating the Risk of Nuclear Theft and Terrorism ­ and Identifying the Highest-Priority Risks of Nuclear Theft by Matthew Bunn SB and SM, Political Science, MIT, 1985 SUBMITTED

de Weck, Olivier L.

351

7-Gate Kinetic AMPA Model Kinetics to match EPSCs from calyx of Held  

E-Print Network [OSTI]

7-Gate Kinetic AMPA Model · Kinetics to match EPSCs from calyx of Held · Multiple closed, open and EPSC amplitude Bruce Graham Department of Computing Science and Mathematics, University of Stirling, U, including the calyx of Held in the mammalian auditory system. Such depression may be mediated

Graham, Bruce

352

The Thinnest Molecular Separation Sheet by Graphene Gates of Single-Walled Carbon Nanohorns  

Science Journals Connector (OSTI)

Graduate School of Science, Chiba University, 1-33 Yayoi, Inage, Chiba, Chiba 263-8522, Japan ... transport properties; surface science; separation science; molecular modeling; green chemistry; molecular gates; picostructures ... The author would like to thank Dr. M. Yudasaka from the Nanotube Research Center, Advanced Industrial Science and Technology, Japan and Prof. S. Iijima from Meijo University, Japan for supplying the NHs. ...

Tomonori Ohba

2014-10-27T23:59:59.000Z

353

International Agriculture Fellowship: A Gates Foundation Grand Challenges Exploration in Endophytic Biological Control  

E-Print Network [OSTI]

International Agriculture Fellowship: A Gates Foundation Grand Challenges Exploration in Endophytic Biological Control Who we are: The International Center for Tropical Agriculture (CIAT) is a member institute of the Consultative Group on International Agricultural Research (CIAR). Based in Cali, Colombia, we focus

Ferrara, Katherine W.

354

Circadian gating of the psbAIII high light response in Synechococcus sp. strain PCC 7942  

E-Print Network [OSTI]

(1-5 fold) during the peaks of the cycle. We also found that in a clock null strain the lack of an oscillator does not entirely negate the light response of PpsbAIII::luxAB; however, this response does not demonstrate gating. In contrast...

Shelton, Jeffrey Lyn

2000-01-01T23:59:59.000Z

355

Performance of a 512 x 512 Gated CMOS Imager with a 250 ps Exposure Time  

SciTech Connect (OSTI)

We describe the performance of a 512x512 gated CMOS read out integrated circuit (ROIC) with a 250 ps exposure time. A low-skew, H-tree trigger distribution system is used to locally generate individual pixel gates in each 8x8 neighborhood of the ROIC. The temporal width of the gate is voltage controlled and user selectable via a precision potentiometer. The gating implementation was first validated in optical tests of a 64x64 pixel prototype ROIC developed as a proof-of-concept during the early phases of the development program. The layout of the H-Tree addresses each quadrant of the ROIC independently and admits operation of the ROIC in two modes. If common mode triggering is used, the camera provides a single 512x512 image. If independent triggers are used, the camera can provide up to four 256x256 images with a frame separation set by the trigger intervals. The ROIC design includes small (sub-pixel) optical photodiode structures to allow test and characterization of the ROIC using optical sources prior to bump bonding. Reported test results were obtained using short pulse, second harmonic Ti:Sapphire laser systems operating at ?~ 400 nm at sub-ps pulse widths.

Teruya, A T; Moody, J D; Hsing, W W; Brown, C G; Griffin, M; Mead, A S

2012-10-01T23:59:59.000Z

356

Elephant Beer and Shinto Gates: Managing Similar Concepts in a Multilingual Database  

E-Print Network [OSTI]

Elephant Beer and Shinto Gates: Managing Similar Concepts in a Multilingual Database Martin" and "tembo" are completely interchangeable when talking about elephants, but bring you different brands as "rouge" in French or "nyekundu" in Swahili. An "elephant" is an elephant, whether it is "éléphant

357

Passivation effect on gate-bias stress instability of carbon nanotube thin film transistors  

SciTech Connect (OSTI)

A prior requirement of any developed transistor for practical use is the stability test. Random network carbon nanotube-thin film transistor (CNT-TFT) was fabricated on SiO{sub 2}/Si. Gate bias stress stability was investigated with various passivation layers of HfO{sub 2} and Al{sub 2}O{sub 3}. Compared to the threshold voltage shift without passivation layer, the measured values in the presence of passivation layers were reduced independent of gate bias polarity except HfO{sub 2} under positive gate bias stress (PGBS). Al{sub 2}O{sub 3} capping layer was found to be the best passivation layer to prevent ambient gas adsorption, while gas adsorption on HfO{sub 2} layer was unavoidable, inducing surface charges to increase threshold voltage shift in particular for PGBS. This high performance in the gate bias stress test of CNT-TFT even superior to that of amorphous silicon opens potential applications to active TFT industry for soft electronics.

Won Lee, Sang [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Suh, Dongseok, E-mail: energy.suh@skku.edu [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Energy Science and Department of Physics, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Young Lee, Si [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Physics, Sungkyunkwan Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Hee Lee, Young, E-mail: leeyoung@skku.edu [Center for Integrated Nanostructure Physics (CINAP), Institute for Basic Science (IBS), Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Energy Science and Department of Physics, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of); Department of Physics, Sungkyunkwan Advanced Institute of Nanotechnology, Sungkyunkwan University, Suwon 440-746 (Korea, Republic of)

2014-04-21T23:59:59.000Z

358

Unique Functional Properties of a Sensory Neuronal P2X ATP-Gated Channel from Zebrafish  

E-Print Network [OSTI]

of native P2X receptor channels evokes a fast inward current carried by mono- valent and calcium ions in a broad range of calcium- dependent signaling events from the neurogenic control of smooth muscle, and a cysteine-rich extracellular loop resembles that of recently discovered proton-gated channels (Wald- mann

Séguéla, Philippe

359

Ligand Gated Ion Channel Functionality Assays Robert P. Hayes, Kumud Raj Poudel and James A. Brozik  

E-Print Network [OSTI]

was to devise a method suitable to test the functionality of the entire family of cysteine-loop ligand gated ion substrate was infused with calcium ions that were trapped by the POPC bilayer. Once the assembly was formed. Electrochemical measurements were taken using a calcium ion sensitive electrode. The assemblies were interrogated

Collins, Gary S.

360

Economic Congestion Relief Across Multiple Regions Requires Tradable Physical Flow-gate Rights  

E-Print Network [OSTI]

PWP-076 Economic Congestion Relief Across Multiple Regions Requires Tradable Physical Flow.ucei.berkeley.edu/ucei #12;Economic Congestion Relief Across Multiple Regions Requires Tradable Physical Flow-gate Rights- mission use. The North American Electric Reliability Council NERC is in the process of implementing

California at Berkeley. University of

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Effects of Magnesium on Inactivation of the Voltage-gated Calcium Current in  

E-Print Network [OSTI]

Effects of Magnesium on Inactivation of the Voltage-gated Calcium Current in Cardiac Myocytes H-dependent inactivation can be modulated by changes in cytoplasmic Mg~+. INTRODUCTION Magnesium is an important constituent of the intracellular milieu. Despite the importance of magnesium as an essential cofactor

362

Influence of Electrolyte Composition on Liquid-Gated Carbon Nanotube and Graphene Transistors  

E-Print Network [OSTI]

Influence of Electrolyte Composition on Liquid-Gated Carbon Nanotube and Graphene Transistors Iddo-walled carbon nanotubes (SWNTs) and graphene can function as highly sensitive nanoscale (bio)sensors in solution. Here, we compare experimentally how SWNT and graphene transistors respond to changes in the composition

Dekker, Cees

363

Photothermal Response in Dual-Gated Bilayer Graphene M.-H. Kim,1  

E-Print Network [OSTI]

Photothermal Response in Dual-Gated Bilayer Graphene M.-H. Kim,1 J. Yan,1,2 R. J. Suess,3 T. E photoresponse in gapped bilayer graphene was investigated by optical and transport measurements. A pulse There is growing recognition that graphene has excep- tional potential as a new optoelectronic material, which has

Murphy, Thomas E.

364

Current transport, gate dielectrics and band gap engineering in graphene devices  

E-Print Network [OSTI]

Current transport, gate dielectrics and band gap engineering in graphene devices Wenjuan Zhu In this work, we studied current transport in mono-, bi- and tri-layer graphene. We find that both of the electrical field of the substrate surface polar phonons in bi-layer/tri-layer graphenes. We also find

Perebeinos, Vasili

365

Hafnium-doped tantalum oxide high-k gate dielectric films for future CMOS technology  

E-Print Network [OSTI]

of the doped films were explained by their compositions and bond structures. The Hf-doped TaOx film is a potential high-k gate dielectric for future MOS transistors. A 5 ?? tantalum nitride (TaNx) interface layer has been inserted between the Hf-doped Ta...

Lu, Jiang

2007-04-25T23:59:59.000Z

366

Channel gating forces govern accuracy of mechano-electrical transduction in hair cells  

Science Journals Connector (OSTI)

...imposed on the measurements by the series resistance of the patch. Hair-bundle displacement was measured...The most important parameter is the elementary gating force, Z, defined as...Support, Non-U.S. Gov't | Animals Electric Stimulation Electrophysiology Hair Cells...

Sietse M. van Netten; Theo Dinklo; Walter Marcotti; Corn J. Kros

2003-01-01T23:59:59.000Z

367

The use of gated radionuclide angiography in the diagnosis of cardiac contusion  

SciTech Connect (OSTI)

No currently used diagnostic test is an accurate predictor of patients who will develop morbidity or mortality from cardiac contusion. In a prospective study we used gated cardiac radionuclide angiography to assess cardiac function in 30 patients with blunt chest trauma, and we compared the results of this test with those of other diagnostic studies for cardiac contusion to determine whether gated angiography is a more accurate predictor of serious cardiac injury. Diagnostic tests included the following: serial electrocardiograms (ECG), serial creatine phosphokinase muscle-brain isoenzyme (CPK-MB) and lactic dehydrogenase (LDH) isoenzymes, gated cardiac radionuclide angiography, and technetium-99m (Tc-99m) pyrophosphate scintigraphy. Abnormal studies were present in 26 patients; 22 showed abnormalities in CPK-MB, 19 on ECG, and five on gated scan. No patient demonstrated an abnormal Tc-99m pyrophosphate scan or abnormal elevation of LDH isoenzyme. Although no diagnostic test was predictive of morbidity and mortality, CPK-MB isoenzyme was the only test to correlate with morbidity and mortality. Morbidity and mortality correlated most closely with the number of associated major injuries and the presence of hypotension or hypoxia.

Fenner, J.E.; Knopp, R.; Lee, B.; dos Santos, P.A.; Wessel, R.J.; Dang, C.V.; Parks, S.N.

1984-09-01T23:59:59.000Z

368

AMF Deployment, Point Reyes National Seashore, California  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

California California Point Reyes Deployment AMF Home Point Reyes Home Data Plots and Baseline Instruments Experiment Planning MASRAD Proposal Abstract and Related Campaigns Outreach Posters Climate Research at Point Reyes National Seashore (horizontal) Climate Research at Point Reyes National Seashore (vertical) News Campaign Images AMF Deployment, Point Reyes National Seashore, California Point Reyes National Seashore, on the California coast north of San Francisco. Shelters: 38° 5' 30.51" N, 122° 57' 19.90" W Instrument Field: 38° 5' 27.6" N, 122° 57' 25.80" W Altitude: 8 meters Point Reyes National Seashore, on the California coast north of San Francisco, was the location of the first deployment of the DOE's Atmospheric Radiation Measurement (ARM) Mobile Facility (AMF). The ARM

369

Analysis of Crossover Points for MVLT Superclass  

Broader source: Energy.gov (indexed) [DOE]

of Crossover Points for MVLT Superclass of Crossover Points for MVLT Superclass 58761v1 Page 1 White Paper - Analysis of Cross-Over Points for Grain-Oriented Electrical Steel and Amorphous Ribbon for the MVLT Superclass Cross-over points for the Medium Voltage Liquid Filled distribution transformer super-class have been analyzed based on the Engineering Analysis provided by the Department of Energy. For the purpose of this white paper, a cross-over point is defined as where the low-cost curve fitted to the point cloud for all of the transformers with M-3 grain-oriented electrical steel core designs crosses the low-cost curve fitted to the point cloud for all of the transformers with amorphous (SA1) core designs. This analysis is based on the data from the DOE Engineering Analysis. It excludes uncorroborated data

370

Variable pressure operation: An assessment  

SciTech Connect (OSTI)

This report summarizes the benefits, drawbacks, and technical issues of variable pressure operation (VPO) retrofit. Under VPO, turbine throttle pressure is reduced at low loads. This operating mode offers several significant advantages for units that cycle or operate at low loads for extended periods. Information used in the report was assembled from published sources, from major equipment manufacturers, and from utilities operating units under VPO in the US, Europe and Japan. The report also contains statistics of VPO use in this country and abroad. Design features of new units using VPO in Europe and Japan are presented to identify potential directions for future US designs incorporating VPO.

Kimel, E.; Kemeny, P.; Bierman, E.; Lagomarsino, J.; Clarke, D. (Burns and Roe, Inc., Oradell, NJ (USA))

1990-03-01T23:59:59.000Z

371

Robust quantum gates and a bus architecture for quantum computing with rare-earth-ion doped crystals  

E-Print Network [OSTI]

We present a composite pulse controlled phase gate which together with a bus architecture improves the feasibility of a recent quantum computing proposal based on rare-earth-ion doped crystals. Our proposed gate operation is tolerant to variations between ions of coupling strengths, pulse lengths, and frequency shifts, and it achieves worst case fidelities above 0.999 with relative variations in coupling strength as high as 10% and frequency shifts up to several percent of the resonant Rabi frequency of the laser used to implement the gate. We outline an experiment to demonstrate the creation and detection of maximally entangled states in the system.

Janus Wesenberg; Klaus Moelmer

2003-01-09T23:59:59.000Z

372

Stirling engine with pressurized crankcase  

SciTech Connect (OSTI)

A two piston Stirling engine wherein the pistons are coupled to a common crankshaft via bearing means, the pistons include pad means to minimize friction between the pistons and the cylinders during reciprocation of the pistons, means for pressurizing the engine crankcase, and means for cooling the crankshaft and the bearing means eliminating the need for oil in the crankcase.

Corey, John A. (Melrose, NY)

1988-01-01T23:59:59.000Z

373

Gas Exchange, Partial Pressure Gradients,  

E-Print Network [OSTI]

Gas Exchange, Partial Pressure Gradients, and the Oxygen Window Johnny E. Brian, Jr., M of circulatory and gas transport physiology, and the best place to start is with normobaric physiology. LIFE affect the precise gas exchange occurring in individual areas of the lungs and body tissues. To make

Riba Sagarra, Jaume

374

Recent high pressure photoluminescence studies  

SciTech Connect (OSTI)

In this paper we discuss two studies involving the effect of pressure on luminescence properties of organic molecules in polymeric media. (1) The efficiency of energy transfer from Coumarine 138 to Rhodamine B in polyacrylic acid (PAA) is measured by both steady state and time dependent methods. The Forster efficiency'' obtained by these two methods is consistent and shows the same pressure dependence as efficiencies derived from relative peak intensities. The non-monotonic pressure dependence of the efficiency is accounted for in terms of the properties of the molecules and the media. (2) The effect of pressure on the luminescent efficiency of molecules with two or more possible excited state geometries has been measured. The efficiency is described in terms of the non-radiative dissipation of energy from a planar excited state and the rates of crossing to and from the possible twisted states as well as non-radiative decay from these states. The processes involved in these two studies are pertinent to a number of technologically and biologically important processes. [copyright]American Institute of Physics

Drickamer, H.G.; Lang, J.M.; Dreger, Z.A. (Department of Chemical Engineering, University of Illinois, 1209 W. California Street, Urbana, Illinois 61801 (United States))

1994-07-10T23:59:59.000Z

375

Chemistry of nitromethane at very high pressure  

SciTech Connect (OSTI)

Decomposition of nitromethane is reported over the range of 115- 180/degree/C and 0.6-8.5 GPa. About 5 /mu/g of nitromethane is compressed with a diamond-anvil cell, heated to the point that reaction occurs, and held typically 10-20 minutes at the reaction temperature. The cell is cooled and the volatile contents of the cell are frozen as a thin layer in vacuo and an infrared absorption spectrum is recorded. The three volatile products observed are N/sub 2/O, CO/sub 2/, and water, with N/sub 2/O production peaking at 1.5 GPa, 135/degree/C, and 35% of NME; CO/sub 2/ production peaking at 3.5 GPa, 135/degree/C, and 65% of NME, and water yields at 20-50% of NME at the highest pressure measured, 8.5 GPa and 175/degree/C. Water yields were difficult to quantify due to background contamination. Results indicate three different reactions for solid NME dependent primarily on the pressure of the reaction, and that fluid NME does not decompose at 0.6 GPa and 175/degree/C, although the solid decomposes readily at 1.1 GPa and 120/degree/C. The authors conclude that, while various decomposition mechanisms are possible, the initial step CH/sub 3/NO/sub 2/ /yields/ /center dot/CH/sub 3/ + /center dot/NO/sub 2/ is very unlikely. 14 refs., 5 figs.

Agnew, S.F.; Swanson, B.I.; Kenney, J.; Kenney, I.

1989-01-01T23:59:59.000Z

376

End Points Management | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Management Management End Points Management The policy of the EM is that a formal project management approach be used for the planning, managing, and conducting of its projects. Specifying and achieving end points is a systematic, engineering way of proceeding from an existing condition to a stated desired final set of conditions in which the facility is safe and can be economically monitored and maintained. An end point method is a way to translate broad mission statements to explicit goals that are readily understood by engineers and craft personnel who do the work. (It should be recognized that while end points as addressed here are for a final set of conditions for deactivation, they may represent an interim point for the overall EM cleanup goal.) End Points Management

377

[0268] First Galley Proofs MULTIPLICITIES, BOUNDARY POINTS,  

E-Print Network [OSTI]

, multiplicity, extreme point, sharp point, boundary point. c Ð , Zagreb Paper OaM-0268 1 #12;2 W.S. CHEUNG NUMERICAL RANGES WAI-SHUN CHEUNG, XUHUA LIU AND TIN-YAU TAM (Communicated by C.-K. Li) Abstract, XUHUA LIU AND T.Y. TAM Given W(A), Embry [8] introduced M = M (A) := {x Cn : x Ax = x x}. In general

Tam, Tin-Yau

378

Prediction of Cloud Points of Biodiesel  

Science Journals Connector (OSTI)

Prediction of Cloud Points of Biodiesel ... Despite the lack of accurate data for the cloud points of biodiesel, the results obtained here allow for an adequate evaluation of the model proposed, showing that it can produce good predictions of the cloud points of mixtures of fatty acid esters. ... Because of its environmental benefits, resulting from a decrease in CO2 emissions, its origin from renewable resources, and the increase in crude oil costs, biodiesel is become increasingly attractive. ...

J. C. A. Lopes; L. Boros; M. A. Krhenbhl; A. J. A. Meirelles; J. L. Daridon; J. Pauly; I. M. Marrucho; J. A. P. Coutinho

2007-10-09T23:59:59.000Z

379

8/1/14 Google Maps https://www.google.com/maps/dir/Golden+Gate+Bridge,+San+Francisco,+CA+94129/UCSF%2FMission+Bay,+San+Francisco,+CA/@37.7996107,-122.4363906,... 1/2  

E-Print Network [OSTI]

8/1/14 Google Maps https://www.google.com/maps/dir/Golden+Gate+Bridge,+San+Francisco,+CA+94129/UCSF has tolls. Directions from Golden Gate Bridge to UCSF/Mission Bay San Francisco, CA 94129 Golden Gate;8/1/14 Google Maps https://www.google.com/maps/dir/Golden+Gate+Bridge,+San+Francisco,+CA+94129/UCSF%2FMission

Derisi, Joseph

380

Microsoft PowerPoint - Proceedings Cover Sheets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RECOVERY OF LIQUID CO2 AND PARTICULATES FROM BIOMASS-FIRED RECOVERY OF LIQUID CO2 AND PARTICULATES FROM BIOMASS-FIRED POWER PLANTS USING PRESSURIZED COMBUSTION Alex G. Fassbender, P.E. Robert S. Henry ThermoEnergy Power Systems, LLC. www.thermoenergy.com Thomas E. Carnahan, Ph.D. University of Nevada, Reno www.unr.edu SUMMARY The novel i pressurized oxy-fuel or air-blown approach known as the ThermoEnergy Integrated Power System (TIPS) is a carbon-capture capable concept designed to produce electricity and steam from high-moisture fuels with near zero air emission of priority and toxic pollutants. The increased system pressure enables use of gas-to-liquid steam-hydroscrubbing to collect and remove pollutants and recover latent heat from water entrained or produced in the combustion process. The pressurized oxy-fuel approach also enables CO

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

New York Nuclear Profile - Indian Point  

U.S. Energy Information Administration (EIA) Indexed Site

Indian Point" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

382

Wisconsin Nuclear Profile - Point Beach Nuclear Plant  

U.S. Energy Information Administration (EIA) Indexed Site

Point Beach Nuclear Plant" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration...

383

Building Green in Greensburg: Prairie Pointe Townhomes  

Office of Energy Efficiency and Renewable Energy (EERE)

This poster highlights energy efficiency, renewable energy, and sustainable features of the high-performing Prairie Pointe Townhomes in Greensburg, Kansas.

384

Homework/Program #1 Solutions a) ( 1 point for each Hello*.java files (3 points), 1 point for each Hello*.class file (3 points)  

E-Print Network [OSTI]

Homework/Program #1 Solutions 1. a) ( 1 point for each Hello*.java files (3 points), 1 point for each Hello*.class file (3 points) -rw-r--r--. 1 cs11xyz cs11sxyz 718 Oct 2 21:47 Hello2.class -rw-r--r--. 1 cs11xyz cs11sxyz 938 Oct 2 21:22 Hello2.java -rw-r--r--. 1 cs11xyz cs11sxyz 427 Oct 2 21:47 Hello

Papadopoulos, Philip M.

385

Inexact and accelerated proximal point algorithms  

E-Print Network [OSTI]

Aug 10, 2011 ... Abstract: We present inexact accelerated proximal point algorithms for minimizing a proper lower semicon- tinuous and convex function.

Saverio Salzo

2011-08-10T23:59:59.000Z

386

General trend for pressurized superconducting hydrogen-dense materials  

SciTech Connect (OSTI)

The long-standing prediction that hydrogen can assume a metallic state under high pressure, combined with arguments put forward more recently that this state might even be superconducting up to high temperatures, continues to spur tremendous research activities toward the experimental realization of metallic hydrogen. These efforts have however so far been impeded by the enormous challenges associated with the exceedingly large required pressure. Hydrogen-dense materials, of the MH{sub 4} form (where M can be, e.g., Si, Ge, or Sn) or of the MH{sub 3} form (with M being, e.g., Al, Sc, Y, or La), allow for the rather exciting opportunity to carry out a proxy study of metallic hydrogen and associated high-temperature superconductivity at pressures within the reach of current techniques. At least one experimental report indicates that a superconducting state might have been observed already in SiH{sub 4}, and several theoretical studies have predicted superconductivity in pressurized hydrogen-rich materials; however, no systematic dependence on the applied pressure has yet been identified so far. In the present work, we have used first-principles methods in an attempt to predict the superconducting critical temperature (T{sub c}) as a function of pressure (P) for three metal-hydride systems of the MH{sub 3} form, namely ScH{sub 3}, YH{sub 3}, and LaH{sub 3}. By comparing the obtained results, we are able to point out a general trend in the T{sub c}-dependence on P. These gained insights presented here are likely to stimulate further theoretical studies of metallic phases of hydrogen-dense materials and should lead to new experimental investigations of their superconducting properties.

Kim, D. Y.; Scheicher, R. H.; Mao, Ho-kwang; Kang, T. W.; Ahuja, R.

2010-01-01T23:59:59.000Z

387

The Distribution of Pressures in a Supernova-Driven Interstellar Medium. I. Magnetized Medium  

E-Print Network [OSTI]

Observations have suggested substantial departures from pressure equilibrium in the interstellar medium (ISM) in the plane of the Galaxy, even on scales under 50 pc. Nevertheless, multi-phase models of the ISM assume at least locally isobaric gas. The pressure then determines the density reached by gas cooling to stable thermal equilibrium. We use numerical models of the magnetized ISM to examine the consequences of supernova driving for interstellar pressures. In this paper we examine a (200 pc)^3 periodic domain threaded by magnetic fields. Individual parcels of gas at different pressures reach widely varying points on the thermal equilibrium curve: no unique set of phases is found, but rather a dynamically-determined continuum of densities and temperatures. A substantial fraction of the gas remains entirely out of thermal equilibrium. Our results appear consistent with observations of interstellar pressures. They also suggest that the high pressures observed in molecular clouds may be due to ram pressures in addition to gravitational forces. Much of the gas in our model lies far from equipartition between thermal and magnetic pressures, with ratios ranging from 0.1 to $10^4$ and ratios of uniform to fluctuating magnetic field of 0.5--1. Our models show broad pressure probability distribution functions with log-normal functional forms produced by both shocks and rarefaction waves, rather than power-law distributions produced by isolated supernova remnants. The width of the distribution can be described quantitatively by a formula derived from the work of Padoan, Nordlund, & Jones (1997).

Mordecai-Mark Mac Low; Dinshaw S. Balsara; Jongsoo Kim; Miguel A. Avillez

2004-10-29T23:59:59.000Z

388

Equation of State for Supercooled Water Near the Liquid-Liquid Critical Point  

E-Print Network [OSTI]

We have developed a scaled parametric equation of state to describe and predict thermodynamic properties of supercooled water. The equation of state, built on the growing evidence that the critical point of supercooled liquid-liquid water separation exists, is universal in terms of theoretical scaling fields and is shown to belong to the Ising-model class of universality. The theoretical scaling fields are postulated to be analytical combinations of the physical fields, pressure and temperature. The equation of state enables us to accurately locate the "Widom line" (the locus of stability minima) and determine that the critical pressure is considerably lower than predicted by computer simulations.

M. A. Anisimov; D. A. Fuentevilla

2006-09-19T23:59:59.000Z

389

Hybrid Photonic Hyper-Controlled-Not Gate with the Dipole Induced Transparency in Weak-Coupling Regime  

E-Print Network [OSTI]

We present a hybrid hyper-controlled-not (hyper-CNOT) gate for hyperparallel photonic quantum computing based on both the polarization and spatial-mode degrees of freedom (DOFs) of a two-photon system, which is identical to two CNOT gates operating at the same time on four photons in one DOF. This proposal is implemented with the optical reflection-transmission property of a diamond nitrogen-vacancy center embedded in a photonic crystal cavity coupled to two waveguides, which is suitable for the robust and flexible quantum information processing based on both the spatial-mode and polarization DOFs of photon systems in Purcell regime. With the hybrid hyper-CNOT gate, more quantum logic gate operations can be accomplished with less resources in a definite period of time, and the influence from photonic dissipation and environment noise can be suppressed.

Bao-Cang Ren; Fu-Guo Deng

2014-11-02T23:59:59.000Z

390

E-Print Network 3.0 - atp-gated p2x4 ion Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ion Search Powered by Explorit Topic List Advanced Search Sample search results for: atp-gated p2x4 ion Page: << < 1 2 3 4 5 > >> 1 introduction browse basic search advanced...

391

Vehicle Technologies Office Merit Review 2014: GATE Center for Electric Drive Transportation at the University of Michigan- Dearborn  

Broader source: Energy.gov [DOE]

Presentation given by Regents University of Michigan at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about GATE Center...

392

Abstract----Recently, a novel multi-bit nonvolatile memory based on double gate (DG) MOSFET is  

E-Print Network [OSTI]

and the negative control gate voltages applied for read operation. We used Silvaco Atlas, a 2- D numerical. The quantitative analysis were conducted by Silvaco Atlas, a 2-D numerical device simulator [4]. We read

Lee, Jong Duk

393

Positions in the GluN2C-Containing NMDAR Regulate Alcohol Sensitivity and Ion Channel Gating.  

E-Print Network [OSTI]

??The N-methyl-D-aspartate (NMDA) receptor, a subtype of glutamate-gated ion channel, has been shown to be a major target of ethanol in the central nervous system (more)

Wu, Man

2014-01-01T23:59:59.000Z

394

Climate: monthly and annual average atmospheric pressure GIS data at  

Open Energy Info (EERE)

atmospheric pressure GIS data at atmospheric pressure GIS data at one-degree resolution of the World from NASA/SSE Dataset Summary Description (Abstract):Atmospheric Pressure (kPa)NASA Surface meteorology and Solar Energy (SSE) Release 6.0 Data Set (Nov 2007)22-year Monthly & Annual Average (July 1983 - June 2005)Parameter: Atmospheric Pressure (kPa)Internet: http://eosweb.larc.nasa.gov/sse/Note 1: SSE Methodology & Accuracy sections onlineNote 2: Lat/Lon values indicate the lower left corner of a 1x1 degree region. Negative values are south and west; positive values are north and east. Boundaries of the -90/-180 region are -90 to -89 (south) and -180 to -179 (west). The last region, 89/180, is bounded by 89 to 90 (north) and 179 to 180 (east). The mid-point of the region is +0.5 added to the the Lat/Lon value. These data are

395

ESS 2012 Peer Review - Notrees Wind Storage - Jeff Gates, Duke Energy  

Broader source: Energy.gov (indexed) [DOE]

Notrees Energy Storage Project Notrees Energy Storage Project Jeff Gates Duke Energy jeff.gates@duke-energy.com Project Objectives * Use energy storage to increase the value and practical application of wind generation * Integrate storage with intermittent renewable energy production * Improve use of power-producing assets by storing energy during non-peak generation periods * Demonstrate benefits of using fast response energy storage to provide ancillary services for grid management * Verify that energy storage solutions can operate within the ERCOT market protocols * Demonstrate ramp control and Energy Storage System * Technology: Advanced lead-acid battery * OEM Partner - Xtreme Power (XP) * 36 MW / 24 MWh output * Modules housed in ~ 6,000 sq. ft. building Project Activities to Date * Site construction began December

396

Effects of spectral entanglement in polarization-entanglement swapping and type-I fusion gates  

Science Journals Connector (OSTI)

We examine how spectral entanglement in polarization-entangled photon states generated from bulk-crystal, spontaneous parametric down-conversion affects the success of entanglement swapping and type-I fusion gates. We quantify the success of the entanglement swapping and fusion gates by calculating the bipartite concurrence and residual tangle, respectively, in terms of the joint spectral probability amplitudes of the initial broad-bandwidth polarization-entangled states. We find that both polarization-entanglement measures depend strongly on the initial spectral entanglement, as well as on the configuration of the independent sources. Specifically, when spectral differences correlate with polarization, the optimal source configuration is different for the two protocols. We conclude that this distinction is founded in how the underlying Bell-state measurement and quantum-erasure techniques respond differently to distinguishing spectral information.

Travis S. Humble and Warren P. Grice

2008-02-11T23:59:59.000Z

397

Practical fast gate rate InGaAs/InP single-photon avalanche photodiodes  

E-Print Network [OSTI]

We present a practical and easy-to-implement method for high-speed near infrared single-photon detection based on InGaAs/InP single-photon avalanche photodiodes (SPADs), combining aspects of both sine gating and self-differencing techniques. At a gating frequency of 921 MHz and temperature of -30 $^{\\circ}$C we achieve: a detection efficiency of 9.3 %, a dark count probability of 2.8$\\times10^{-6}$ ns$^{-1}$, while the afterpulse probability is 1.6$\\times10^{-4}$ ns$^{-1}$, with a 10 ns "count-off time" setting. In principle, the maximum count rate of the SPAD can approach 100 MHz, which can significantly improve the performance for diverse applications.

Jun Zhang; Rob Thew; Claudio Barreiro; Hugo Zbinden

2009-08-16T23:59:59.000Z

398

Double-metal-gate nanocrystalline Si thin film transistors with flexible threshold voltage controllability  

SciTech Connect (OSTI)

We fabricated nano-crystalline Si (nc-Si:H) thin-film transistors (TFTs) with a double-metal-gate structure, which showed a high electron-mobility (?{sub FE}) and adjustable threshold voltages (V{sub th}). The nc-Si:H channel and source/drain (S/D) of the multilayered TFT were deposited at 375?C by inductively coupled plasma chemical vapor deposition. The low grain-boundary defect density of the channel layer is responsible for the high ?{sub FE} of 370 cm{sup 2}/V-s, a steep subthreshold slope of 90?mV/decade, and a low V{sub th} of ?0.64?V. When biased with the double-gate driving mode, the device shows a tunable V{sub th} value extending from ?1?V up to 2.7?V.

Chiou, Uio-Pu; Pan, Fu-Ming, E-mail: fmpan@faculty.nctu.edu.tw [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China)] [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China); Shieh, Jia-Min, E-mail: jmshieh@narlabs.org.tw, E-mail: jmshieh@faculty.nctu.edu.tw [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China) [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China); Departments of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan (China); Yang, Chih-Chao [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China)] [National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China); Huang, Wen-Hsien [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China) [Department of Materials Science and Engineering, National Chiao-Tung University, Hsinchu 30050, Taiwan (China); National Nano Device Laboratories, No. 26, Prosperity Road 1, Hsinchu 30078, Taiwan (China); Kao, Yo-Tsung [Departments of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan (China)] [Departments of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu 30010, Taiwan (China)

2013-11-11T23:59:59.000Z

399

2012 ARPA-E Energy Innovation Summit: Fireside Chat with Steven Chu and Bill Gates  

ScienceCinema (OSTI)

The third annual ARPA-E Energy Innovation Summit was held in Washington D.C. in February, 2012. The event brought together key players from across the energy ecosystem - researchers, entrepreneurs, investors, corporate executives, and government officials - to share ideas for developing and deploying the next generation of energy technologies. This video captures a session called 'Fireside Chat' that featured Steven Chu, the Secretary of Energy, and Bill Gates, Chairman of Microsoft Corporation. The session is moderated by John Podesta, Chair of the Center for American Progress. Energy Secretary Steven Chu and Microsoft Founder and Chairman Bill Gates exchanged ideas about how small businesses and innovators can overcome the challenges that face many startups.

Chu, Steven (U.S. Department of Energy Secretary); Gates, Bill (Microsoft, Chairman); Podesta, John (Center for American Progress, Chair and Counselor)

2012-03-21T23:59:59.000Z

400

Plasma pressure compaction of nanodiamond  

Science Journals Connector (OSTI)

Detonation synthesized nanodiamond (ND) was sintered using a Plasma Pressure Compaction (P2C) technique. Sintering was performed for 1min at temperatures between 700 and 1200C, and for 110min at 900C under 65MPa pressure. Structure and composition of the sintered samples were analyzed by X-ray diffraction, transmission electron microscopy and Raman microspectroscopy. The selected sintering conditions prevent excessive graphitization of diamond and allow formation of porous pellets having the density of 1.31.6g/cm3, hardness >0.1GPa and Young's modulus >3GPa. The sintered ND pellets with porosity of about 50% have mechanical properties sufficient for handling and can be infiltrated to produce ND composites.

Sebastian Osswald; Adrian Gurga; Franklyn Kellogg; Kyu Cho; Gleb Yushin; Yury Gogotsi

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Ambient pressure fuel cell system  

DOE Patents [OSTI]

An ambient pressure fuel cell system is provided with a fuel cell stack formed from a plurality of fuel cells having membrane/electrode assemblies (MEAs) that are hydrated with liquid water and bipolar plates with anode and cathode sides for distributing hydrogen fuel gas and water to a first side of each one of the MEAs and air with reactant oxygen gas to a second side of each one of the MEAs. A pump supplies liquid water to the fuel cells. A recirculating system may be used to return unused hydrogen fuel gas to the stack. A near-ambient pressure blower blows air through the fuel cell stack in excess of reaction stoichiometric amounts to react with the hydrogen fuel gas.

Wilson, Mahlon S. (Los Alamos, NM)

2000-01-01T23:59:59.000Z

402

The Control Point Policy Stanley B. Gershwin  

E-Print Network [OSTI]

://web.mit.edu/manuf-sys Massachusetts Institute of Technology Spring, 2012 The Control Point Policy 1/33 Copyright c 2012 Stanley B-time calculation. The purpose of real-time scheduling in a factory is to make decisions in response to random failures, change in demand, etc. The Control Point Policy 4/33 Copyright c 2012 Stanley B. Gershwin. All

Gershwin, Stanley B.

403

Multiple Point Schemes for Corank 1 Maps  

Science Journals Connector (OSTI)

......Multiple Point Schemes for Corank 1 Maps Washington Luiz Marar David Mond...MULTIPLE POINT SCHEMES FOR CORANK 1 MAPS WASHINGTON LUIZ MARAR AND DAVID...1). Finally, denote the map Cn "1+fc -> C*~m defined...g:(Cn -1+k ,0) *C\\gis G-invariant}. Then

Washington Luiz Marar; David Mond

1989-06-01T23:59:59.000Z

404

Analysis of the parallel distinguished point tradeoff  

Science Journals Connector (OSTI)

Cryptanalytic time memory tradeoff algorithms are tools for quickly inverting one-way functions and many consider the rainbow table method to be the most efficient tradeoff algorithm. However, it was recently announced, mostly based on experiments, that ... Keywords: distinguished point, parallel distinguished point, rainbow table, time memory tradeoff

Jin Hong; Ga Won Lee; Daegun Ma

2011-12-01T23:59:59.000Z

405

Point-to-curve ray tracing  

Science Journals Connector (OSTI)

Point-to-curve ray tracing is an attempt at dealing with multiplicity of solutions to a generic boundary-value problem of ray tracing. In a point-to-curve tracing (P2C) the input parameters of the boundary-value....

Andrzej Hanyga

1996-01-01T23:59:59.000Z

406

Point-to-curve Ray Tracing  

Science Journals Connector (OSTI)

Point-to-curve ray tracing is an attempt at dealing with multiplicity of solutions to a generic boundary-value problem of ray tracing. In a point-to-curve tracing (P2C) the input parameters of the boundary-value....

Andrzej Hanyga

1996-01-01T23:59:59.000Z

407

Variable pressure thermal insulating jacket  

DOE Patents [OSTI]

A device for controlled insulation of a thermal device is disclosed. The device includes a thermal jacket with a closed volume able to be evacuated to form an insulating jacket around the thermal source. A getter material is in communication with the closed volume of the thermal jacket. The getter material can absorb and desorb a control gas to control gas pressure in the volume of the thermal jacket to control thermal conductivity in the thermal jacket. 10 figs.

Nelson, P.A.; Malecha, R.F.; Chilenskas, A.A.

1994-09-20T23:59:59.000Z

408

Ground-State Structures of Ice at High-Pressures  

E-Print Network [OSTI]

\\textit{Ab initio} random structure searching based on density functional theory is used to determine the ground-state structures of ice at high pressures. Including estimates of lattice zero-point energies, ice is found to adopt three novel crystal phases. The underlying sub-lattice of O atoms remains similar among them, and the transitions can be characterized by reorganizations of the hydrogen bonds. The symmetric hydrogen bonds of ice X and $Pbcm$ are initially lost as ice transforms to structures with symmetries $Pmc2_1$ (800 - 950 GPa) and $P2_1$ (1.17 TPa), but they are eventually regained at 5.62 TPa in a layered structure $C2/m$. The $P2_1 \\rightarrow C2/m$ transformation also marks the insulator-to-metal transition in ice, which occurs at a significantly higher pressure than recently predicted.

McMahon, Jeffrey M

2011-01-01T23:59:59.000Z

409

Gated x-ray framing camera image of a direct-drive cylindrical implosion  

SciTech Connect (OSTI)

Gated X-ray images of laser-driven implosions can provide movies of typically 16 frames with {approximately} 80 ps time resolution and 10 {micro}m spatial resolution. Cylindrical implosions allow study of convergent hydrodynamics but with excellent diagnostic access down the axis of the cylinder. This example from a recent cylindrical implosion campaign on the OMEGA laser provides quantitative data on the growth of ablative Rayleigh-Taylor instabilities in convergent geometry.

Voss, S.A.; Barnes, C.W.; Oertel, J.A.; Watt, R.G. [Los Alamos National Lab., NM (United States)] [Los Alamos National Lab., NM (United States); Boehly, T.R.; Bradley, D.K.; Knauer, J.P.; Pien, G. [Univ. of Rochester, NY (United States). Lab. for Laser Energetics] [Univ. of Rochester, NY (United States). Lab. for Laser Energetics

1999-02-01T23:59:59.000Z

410

Highly enhanced avalanche probability using sinusoidally-gated silicon avalanche photodiode  

SciTech Connect (OSTI)

We report on visible light single photon detection using a sinusoidally-gated silicon avalanche photodiode. Detection efficiency of 70.6% was achieved at a wavelength of 520?nm when an electrically cooled silicon avalanche photodiode with a quantum efficiency of 72.4% was used, which implies that a photo-excited single charge carrier in a silicon avalanche photodiode can trigger a detectable avalanche (charge) signal with a probability of 97.6%.

Suzuki, Shingo; Namekata, Naoto, E-mail: nnao@phys.cst.nihon-u.ac.jp; Inoue, Shuichiro [Institute of Quantum Science, Nihon University, 1-8-14 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8308 (Japan); Tsujino, Kenji [Tokyo Women's Medical University, 8-1 Kawada-cho, Shinjuku-ku, Tokyo 162-8666 (Japan)

2014-01-27T23:59:59.000Z

411

Modeling the current behavior of the digital BiCMOS gate  

E-Print Network [OSTI]

CMOS gate showing the pull-up and pull-down sections 6 Schematics of the pull-up section Pull-up equivalent circuit model . Equivalent circuit model 10 Simplified equivalent circuit model Equivalent circuit model neglecting ATF Collector current... with ATF effect vs without ATF effect 14 Modified circuit model 16 10 Comparison of this work versus SPICE simulation Typical collector current response 17 12 13 Equivalent circuit for 0 ? t0 Equivalent circuit after t0 21 14 Base current...

Tang, Zhilong

1995-01-01T23:59:59.000Z

412

Case Studies on Variation Tolerant and Low Power Design Using Planar Asymmetric Double Gate Transistor  

E-Print Network [OSTI]

new circuit topology for IGFET, which on average shows 33.8% lower leakage and 34.9% lower area at the cost of 2.8% increase in total active mode power, for basic logic gates. Finally, we showed a technique for reducing leakage of minimum sized... ????????????????????????????????????????????????? 5 III.1 Power-delay product for FO4 inverter ????????????????????????????????????? 12 III.2 Power-delay product for 51 Stage ring oscillator ??????????????????????????? 12 IV.1 Delay distribution histogram...

Singh, Amrinder

2011-10-21T23:59:59.000Z

413

Anaesthetic machine pipeline inlet pressure gauges do not always measure pipeline pressure  

Science Journals Connector (OSTI)

Some anaesthetic gas machines have pipeline inlet pressure gauges which indicate the higher of either pipeline pressure, or machine circuit pressure (the ... specific circumstances lead to a delayed appreciation ...

Douglas B. Craig; John Longmuir

1980-09-01T23:59:59.000Z

414

Atmospheric-pressure plasma jet  

SciTech Connect (OSTI)

A {gamma}-mode, resonant-cavity plasma discharge that can be operated at atmospheric pressure and near room temperature using 13.56 MHz rf power is described. Unlike plasma torches, the discharge produces a gas-phase effluent no hotter than 250 C at an applied power of about 300 W, and shows distinct non-thermal characteristics. In the simplest design, two concentric cylindrical electrodes are employed to generate a plasma in the annular region there between. A jet of long-lived metastable and reactive species that are capable of rapidly cleaning or etching metals and other materials is generated which extends up to 8 in. beyond the open end of the electrodes. Films and coatings may also be removed by these species. Arcing is prevented in the apparatus by using gas mixtures containing He, which limits ionization, by using high flow velocities, and by properly shaping the rf-powered electrode. Because of the atmospheric pressure operation, no ions survive for a sufficiently long distance beyond the active plasma discharge to bombard a workpiece, unlike low-pressure plasma sources and conventional plasma processing methods.

Selwyn, G.S.

1999-10-05T23:59:59.000Z

415

Reactor Pressure Vessel Head Packaging & Disposal  

SciTech Connect (OSTI)

Reactor Pressure Vessel (RPV) Head replacements have come to the forefront due to erosion/corrosion and wastage problems resulting from the susceptibility of the RPV Head alloy steel material to water/boric acid corrosion from reactor coolant leakage through the various RPV Head penetrations. A case in point is the recent Davis-Besse RPV Head project, where detailed inspections in early 2002 revealed significant wastage of head material adjacent to one of the Control Rod Drive Mechanism (CRDM) nozzles. In lieu of making ASME weld repairs to the damaged head, Davis-Besse made the decision to replace the RPV Head. The decision was made on the basis that the required weld repair would be too extensive and almost impractical. This paper presents the packaging, transport, and disposal considerations for the damaged Davis-Besse RPV Head. It addresses the requirements necessary to meet Davis Besse needs, as well as the regulatory criteria, for shipping and burial of the head. It focuses on the radiological characterization, shipping/disposal package design, site preparation and packaging, and the transportation and emergency response plans that were developed for the Davis-Besse RPV Head project.

Wheeler, D. M.; Posivak, E.; Freitag, A.; Geddes, B.

2003-02-26T23:59:59.000Z

416

ESS 2012 Peer Review - Engineered Gate Oxides for Wide Bandgap Semiconductor MOSFETs - Jon Ihlefeld, SNL  

Broader source: Energy.gov (indexed) [DOE]

-5 -5 10 -4 10 -3 10 -2 10 -1 10 0 10 1 -6 -4 -2 0 2 4 6 8 10 |J Leakage | (A-cm -2 ) Semiconductor Voltage (V) Engineered Gate Oxides for Wide Bandgap S emiconductor M OSFETs* Jon I hlefeld, M ichael B rumbach, S andeepan D asGupta, and Stanley AtciEy Sandia NaGonal Laboratories *Sponsored b y t he U .S. D epartment o f E nergy's O ffice o f E lectricity E nergy S torage Systems P rogram jihlefe@sandia.gov, 505---844---3162; s atciE@sandia.gov, 505---284---2701 Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. SAND No. 2011-XXXXP Cooling Power electronics Energy storage Energy storage -V gate Low defect oxide Metal gate Wide

417

Optimum performance investigation of LYSO crystal pixels: A comparison between GATE simulation and experimental data  

E-Print Network [OSTI]

Monte Carlo simulation plays an important role in the study of time of flight (TOF) positron emission tomography (PET) prototype. As it can incorporate accurate physical modeling of scintillation detection process, from scintillation light generation, the transport of scintillation photos through the crystal(s), to the conversion of these photons into electronic signals. The Geant4 based simulation software GATE can provide a user-friendly simulation platform containing the properties needed. In this work, we developed a dedicated module in GATE simulation tool. Using this module, we simulated the light yield, energy resolution, time resolution of LYSO pixels with the same cross-section ($4\\times4 mm^{2}$) of different lengths: 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, coupled to a PMT. The experiments were performed to validate the GATE simulation results. The results indicate that the best time resolution (484.0$\\pm$67.5 ps) and energy resolution (13.3$\\pm$0.4 %) could be produced by using pixel with length of 5 mm...

Chen, Ze; Chen, Jin-Da; Zhang, Xiu-Ling; Sun, Zhi-Yu; Huang, Wen-Xue; Wang, Jian-Song; Guo, Zhong-Yan; Xiao, Guo-Qing

2013-01-01T23:59:59.000Z

418

Optimum performance investigation of LYSO crystal pixels: A comparison between GATE simulation and experimental data  

E-Print Network [OSTI]

Monte Carlo simulation plays an important role in the study of time of flight (TOF) positron emission tomography (PET) prototype. As it can incorporate accurate physical modeling of scintillation detection process, from scintillation light generation, the transport of scintillation photos through the crystal(s), to the conversion of these photons into electronic signals. The Geant4 based simulation software GATE can provide a user-friendly simulation platform containing the properties needed. In this work, we developed a dedicated module in GATE simulation tool. Using this module, we simulated the light yield, energy resolution, time resolution of LYSO pixels with the same cross-section ($4\\times4 mm^{2}$) of different lengths: 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, coupled to a PMT. The experiments were performed to validate the GATE simulation results. The results indicate that the best time resolution (484.0$\\pm$67.5 ps) and energy resolution (13.3$\\pm$0.4 %) could be produced by using pixel with length of 5 mm. The module can also be applied to other cases for precisely simulating optical photons propagating in scintillators.

Ze Chen; Zheng-Guo Hu; Jin-Da Chen; Xiu-Ling Zhang; Zhi-Yu Sun; Wen-Xue Huang; Jian-Song Wang; Zhong-Yan Guo; Guo-Qing Xiao

2013-09-15T23:59:59.000Z

419

A large Bradbury Nielsen ion gate with flexible wire spacing based on photo-etched stainless steel grids  

E-Print Network [OSTI]

Bradbury Nielsen gates are well known devices used to switch ion beams and are typically applied in mass or mobility spectrometers for separating beam constituents by their different flight or drift times. A Bradbury Nielsen gate consists of two interleaved sets of electrodes. If opposite polarity of the same amplitude is applied the gate is closed, and for identical (zero) potential the gate is open. Whereas former realizations of the device employ actual wires resulting in difficulties with winding, fixing and tensioning them, our approach is to use two grids photo-etched onto a metallic foil. This design allows for simplified construction of gates covering large beam sizes up to at least 900\\,mm$^2$ with variable wire spacing down to 250\\,\\textmu m. By changing the grids the wire spacing can be varied without major changes. A gate of this design was installed and systematically tested at TRIUMF's ion trap facility, TITAN, for use with radioactive beams to separate isobaric contamination of charge states.

Brunner, T; O'Sullivan, K; Simon, M C; Kossick, M; Ettenauer, S; Gallant, A T; Man, E; Bishop, D; Good, M; Gratta, G; Dilling, J

2011-01-01T23:59:59.000Z

420

Poly(methyl methacrylate) as a self-assembled gate dielectric for graphene field-effect transistors  

SciTech Connect (OSTI)

We investigate poly(methyl methacrylate) (PMMA) as a low thermal budget organic gate dielectric for graphene field effect-transistors (GFETs) based on a simple process flow. We show that high temperature baking steps above the glass transition temperature (?130?C) can leave a self-assembled, thin PMMA film on graphene, where we get a gate dielectric almost for free without additional atomic layer deposition type steps. Electrical characterization of GFETs with PMMA as a gate dielectric yields a dielectric constant of k?=?3.0. GFETs with thinner PMMA dielectrics have a lower dielectric constant due to decreased polarization arising from neutralization of dipoles and charged carriers as baking temperatures increase. The leakage through PMMA gate dielectric increases with decreasing dielectric thickness and increasing electric field. Unlike conventional high-k gate dielectrics, such low-k organic gate dielectrics are potentially attractive for devices such as the proposed Bilayer pseudoSpin Field-Effect Transistor or flexible high speed graphene electronics.

Sanne, A.; Movva, H. C. P.; Kang, S.; McClellan, C.; Corbet, C. M.; Banerjee, S. K. [Microelectronics Research Center, University of Texas, Austin, Texas 78758 (United States)

2014-02-24T23:59:59.000Z

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Design and optimisation of quantum logic circuits for a three-qubit Deutsch-Jozsa algorithm implemented with optically-controlled, solid-state quantum logic gates  

E-Print Network [OSTI]

We analyse the design and optimisation of quantum logic circuits suitable for the experimental demonstration of a three-qubit quantum computation prototype based on optically-controlled, solid-state quantum logic gates. In these gates, the interaction between two qubits carried by the electron-spin of donors is mediated by the optical excitation of a control particle placed in their proximity. First, we use a geometrical approach for analysing the entangling characteristics of these quantum gates. Then, using a genetic programming algorithm, we develop circuits for the refined Deutsch-Jozsa algorithm investigating different strategies for obtaining short total computational times. We test two separate approaches based on using different sets of entangling gates with the shortest possible gate computation time which, however, does not introduce leakage of quantum information to the control particles. The first set exploits fast approximations of controlled-phase gates as entangling gates, while the other one arbitrary entangling gates with a shorter gate computation time compared to the first set. We have identified circuits with consistently shorter total computation times when using controlled-phase gates.

A. Del Duce; S. Savory; P. Bayvel

2009-10-09T23:59:59.000Z

422

Electrical Transport Experiments at High Pressure  

SciTech Connect (OSTI)

High-pressure electrical measurements have a long history of use in the study of materials under ultra-high pressures. In recent years, electrical transport experiments have played a key role in the study of many interesting high pressure phenomena including pressure-induced superconductivity, insulator-to-metal transitions, and quantum critical behavior. High-pressure electrical transport experiments also play an important function in geophysics and the study of the Earth's interior. Besides electrical conductivity measurements, electrical transport experiments also encompass techniques for the study of the optoelectronic and thermoelectric properties of materials under high pressures. In addition, electrical transport techniques, i.e., the ability to extend electrically conductive wires from outside instrumentation into the high pressure sample chamber have been utilized to perform other types of experiments as well, such as high-pressure magnetic susceptibility and de Haas-van Alphen Fermi surface experiments. Finally, electrical transport techniques have also been utilized for delivering significant amounts of electrical power to high pressure samples, for the purpose of performing high-pressure and -temperature experiments. Thus, not only do high-pressure electrical transport experiments provide much interesting and valuable data on the physical properties of materials extreme compression, but the underlying high-pressure electrical transport techniques can be used in a number of ways to develop additional diagnostic techniques and to advance high pressure capabilities.

Weir, S

2009-02-11T23:59:59.000Z

423

Microsoft PowerPoint - OZMRpresentation 09-06-09.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Andritz Andritz Hydro Corp (formerly VA Tech Hydro) * Current Contract Value- $83 Million * 51 Modifications to Date- $5.8 Million * Notice to Proceed Issued- July 2005 * Major Components for All 5 Units are either Complete or in Fabrication * Contract Required Completion Date- April 2013 US Army Corps US Army Corps of Engineers of Engineers ® ® Unit 4 New Runner Assembly Unit 4 New Runner Assembly Unit 4 New Runner Assembly US Army Corps US Army Corps of Engineers of Engineers ® ® Unit 4 Stub Shaft Removal Unit 4 Stub Shaft Removal Unit 4 Stub Shaft Removal US Army Corps US Army Corps of Engineers of Engineers ® ® Unit 4 Wicket Gate Barrel Removal Unit 4 Unit 4 Wicket Gate Barrel Wicket Gate Barrel Removal Removal US Army Corps US Army Corps of Engineers of Engineers ® ® Unit 4 Discharge Ring

424

Flash High-Pressure Condensate to Regenerate Low-Pressure Steam  

Broader source: Energy.gov [DOE]

This tip sheet outlines optimal conditions for flashing high-pressure condensate to regenerate low-pressure steam in steam systems.

425

High-Pressure Tube Trailers and Tanks  

Broader source: Energy.gov [DOE]

Presentation on High-Pressure Tube Trailers and Tanks for the DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project Review Meeting held February 8-9, 2005 at Argonne National Laboratory

426

Managed pressure drilling techniques and tools  

E-Print Network [OSTI]

these problems, the economics of drilling the wells will improve, thus enabling the industry to drill wells that were previously uneconomical. Managed pressure drilling (MPD) is a new technology that enables a driller to more precisely control annular pressures...

Martin, Matthew Daniel

2006-08-16T23:59:59.000Z

427

International Hydrogen Fuel and Pressure Vessel Forum  

Broader source: Energy.gov [DOE]

The U.S. Department of Energy (DOE) and Tsinghua University in Beijing co-hosted the International Hydrogen Fuel and Pressure Vessel Forum on September 2729, 2010 in Beijing, China. High pressure...

428

Air separation with temperature and pressure swing  

DOE Patents [OSTI]

A chemical absorbent air separation process is set forth which uses a temperature swing absorption-desorption cycle in combination with a pressure swing wherein the pressure is elevated in the desorption stage of the process.

Cassano, Anthony A. (Allentown, PA)

1986-01-01T23:59:59.000Z

429

Pressure Data: BOP Summary 28 May 2010  

Broader source: Energy.gov [DOE]

This is a schematic of the BOP stack with the static pressure data recoded on the 28th of May and shows pressures before and after the attempted top kill and junk shots.

430

Nanocomposite Flexible Pressure Sensor for Biomedical Applications  

E-Print Network [OSTI]

A new approach for the fabrication of flexible pressure sensors based on aligned carbon nanotubes (A-CNTs) is described in this paper. The technology is suitable for blood pressure sensors that can be attached to a stent-graft ...

Fachin, F.

431

Carbon nanotube temperature and pressure sensors  

DOE Patents [OSTI]

The present invention, in one embodiment, provides a method of measuring pressure or temperature using a sensor including a sensor element composed of a plurality of carbon nanotubes. In one example, the resistance of the plurality of carbon nanotubes is measured in response to the application of temperature or pressure. The changes in resistance are then recorded and correlated to temperature or pressure. In one embodiment, the present invention provides for independent measurement of pressure or temperature using the sensors disclosed herein.

Ivanov, Ilia N; Geohegan, David Bruce

2013-10-29T23:59:59.000Z

432

High pressure fiber optic sensor system  

DOE Patents [OSTI]

The present application provides a fiber optic sensor system. The fiber optic sensor system may include a small diameter bellows, a large diameter bellows, and a fiber optic pressure sensor attached to the small diameter bellows. Contraction of the large diameter bellows under an applied pressure may cause the small diameter bellows to expand such that the fiber optic pressure sensor may measure the applied pressure.

Guida, Renato; Xia, Hua; Lee, Boon K; Dekate, Sachin N

2013-11-26T23:59:59.000Z

433

Molecular dynamics simulations of the melting curve of NiAl alloy under pressure  

SciTech Connect (OSTI)

The melting curve of B2-NiAl alloy under pressure has been investigated using molecular dynamics technique and the embedded atom method (EAM) potential. The melting temperatures were determined with two approaches, the one-phase and the two-phase methods. The first one simulates a homogeneous melting, while the second one involves a heterogeneous melting of materials. Both approaches reduce the superheating effectively and their results are close to each other at the applied pressures. By fitting the well-known Simon equation to our melting data, we yielded the melting curves for NiAl: 1783(1 + P/9.801){sup 0.298} (one-phase approach), 1850(1 + P/12.806){sup 0.357} (two-phase approach). The good agreement of the resulting equation of states and the zero-pressure melting point (calc., 1850 25 K, exp., 1911 K) with experiment proved the correctness of these results. These melting data complemented the absence of experimental high-pressure melting of NiAl. To check the transferability of this EAM potential, we have also predicted the melting curves of pure nickel and pure aluminum. Results show the calculated melting point of Nickel agrees well with experiment at zero pressure, while the melting point of aluminum is slightly higher than experiment.

Zhang, Wenjin; Peng, Yufeng [College of Physics and electronic Engineering, Henan Normal University, Xinxiang, 453007 (China)] [College of Physics and electronic Engineering, Henan Normal University, Xinxiang, 453007 (China); Liu, Zhongli, E-mail: zhongliliu@yeah.net [College of Physics and Electric Information, Luoyang Normal University, Luoyang, 471002 (China)] [College of Physics and Electric Information, Luoyang Normal University, Luoyang, 471002 (China)

2014-05-15T23:59:59.000Z

434

Neutron scattering studies of materials under pressure  

Science Journals Connector (OSTI)

A review of experimental techniques used in the study of materials under applied pressure by neutron scattering is given along with a discussion of the amount of information that can be obtained from various pressure conditions. Some experimental results are presented to illustrate both the feasibility and the interest of elastic and inelastic neutron scattering measurements of materials under pressure.

C. Vettier

1982-01-01T23:59:59.000Z

435

Support Vector Networks for Prediction of Floor Pressures in Shallow Cavity Flows  

E-Print Network [OSTI]

to collect a set of data, which is in the form of pressure readings from particular points in the test measurement at the cavity floor. The SVM based model is built for a very limited amount of training data indicate that the SVM based model is capable of matching the experimental data satisfactorily over

Efe, Mehmet ?nder

436

Investigations on the Failure of Economizer Tubes in a High-Pressure Boiler  

Science Journals Connector (OSTI)

This article describes the results of an investigation concerning the failure of economizer tubes of a high-pressure boiler in ... . The cause of the failure of the economizer tube appears to be H2SO4 dew-point c...

M. Mobin; A. U. Malik; M. Al-Hajri

2008-02-01T23:59:59.000Z

437

Method and system for measuring multiphase flow using multiple pressure differentials  

DOE Patents [OSTI]

An improved method and system for measuring a multiphase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multiphase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The method for determining the mass flow of the high void fraction fluid flow and the gas flow includes certain steps. The first step is calculating a gas density for the gas flow. The next two steps are finding a normalized gas mass flow rate through the venturi and computing a gas mass flow rate. The following step is estimating the gas velocity in the venturi tube throat. The next step is calculating the pressure drop experienced by the gas-phase due to work performed by the gas phase in accelerating the liquid phase between the upstream pressure measuring point and the pressure measuring point in the venturi throat. Another step is estimating the liquid velocity in the venturi throat using the calculated pressure drop experienced by the gas-phase due to work performed by the gas phase. Then the friction is computed between the liquid phase and a wall in the venturi tube. Finally, the total mass flow rate based on measured pressure in the venturi throat is calculated, and the mass flow rate of the liquid phase is calculated from the difference of the total mass flow rate and the gas mass flow rate.

Fincke, James R. (Idaho Falls, ID)

2001-01-01T23:59:59.000Z

438

Point380 LLC | Open Energy Information  

Open Energy Info (EERE)

Point380 LLC Point380 LLC Jump to: navigation, search Name Point380, LLC Place Boulder, Colorado Zip 80302 Sector Carbon Product Point380 provides carbon consulting and resource management solutions to a broad range of clients seeking energy related risk analysis and policy analysis. Coordinates 42.74962°, -109.714163° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.74962,"lon":-109.714163,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

439

Cedar Point Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Point Wind Farm Point Wind Farm Jump to: navigation, search Name Cedar Point Wind Farm Facility Cedar Point Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Enbridge Inc. Developer RES Americas Energy Purchaser Xcel Energy Location Elbert CO Coordinates 39.219417°, -104.537167° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.219417,"lon":-104.537167,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

440

End Points Specification Methods | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

End Points Specification Methods End Points Specification Methods End Points Specification Methods Two methods to develop end point specifications are presented. These have evolved from use in the field for deactivation projects. The hierarchical method is systematic, comprehensive, and completely defensible as to the basis for each specification. This method may appear complex to the uninitiated, but it is a straightforward application of a systematic engineering approach. It is labor intensive only during the final stage. This method is appropriate to the type of project involving a complex facility that contains process systems and a variety of contaminated areas or other hazards. The checklist method is an approach that is more appropriate to facilities which require less detailed planning, such as for industrial

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Tribal Points of Contacts | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Points of Contacts Points of Contacts Tribal Points of Contacts US DOE-Office of Environmental Management 1000 Independence Avenue, SW Washington, DC 20585 ph: (202) 586-5944 fax: (202) 586-5000 Richland Operations Office- Hanford Indian Nations Program P.O. Box 550- MSIN A7-75 Richland, WA 99352 ph: (509) 376-6332 fax: (509) 376-1563 West Valley Demonstration Project Tribal Government Liaison P.O. Box 191- 10282 Rock Springs Road West Valley, NY 14171 ph: (716) 942-4629 fax: (716) 942-2068 Albuquerque Operations Office Tribal Government Liaison P.O. Box 5400 Albuquerque, NM 87185 ph: (505) 845-5977 fax: (505) 845-4154 Tribal Points of Contact Richland Operations Office: Hanford Albuquerque Operations Office: Yakama Indian Nation Environmental Restoration/ Waste Management Program

442

Star Point Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Point Wind Farm Point Wind Farm Jump to: navigation, search Name Star Point Wind Farm Facility Star Point Wind Farm Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Iberdrola Renewables Developer Iberdrola Renewables Energy Purchaser Modesto Irrigation District Location Near Moro OR Coordinates 45.474734°, -120.704412° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.474734,"lon":-120.704412,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

443

large-point | netl.doe.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Carbon Dioxide Capture from Large Point Sources Project No.: FG02-04ER83925 SBIR Commercial hollow fiber membrane cartridge. Commercial hollow fiber membrane cartridge 6"(D) X...

444

Creating Your SharePoint Roadmap  

Science Journals Connector (OSTI)

In this chapter, I focus on the process for creating a vision and a roadmap that describes what a SharePoint service will evolve into over time. I discuss approaches to building a timeline view of enhancements...

Steve Goodyear

2013-01-01T23:59:59.000Z

445

Saturation Point Analysis of Moist Convective Overturning  

Science Journals Connector (OSTI)

A unified approach to the thermodynamics of cloudy air, cloud-clear air mixing processes, atmospheric thermodynamic equilibrium structure and instability is formulated, using a new concept: the Saturation Point. This permits the representation of ...

Alan K. Betts

1982-07-01T23:59:59.000Z

446

Partial pressure analysis of CF/sub 4//O/sub 2/ plasmas  

SciTech Connect (OSTI)

This work will examine a simple down-stream sampling arrangement for effluent analysis in a typical plasma environment. This method offers the advantage of simplicity when compared to the need for extraction optics and energy analyzing stages required for flux-type analysis. In addition, partial pressure analysis provides information on the plasma/surface interactions occurring over the entire surface area of the reactor as opposed to just those occurring at the sampling orifice in flux-type analysis. This fact makes partial-pressure analysis particularly attractive for such tasks as plasma-etch end-point monitoring. In this example, experimental partial-pressure measurements of a CF/sub 4//O/sub 2/ plasma are presented as is the application of the technique to plasma etch end-point detection. 12 refs., 2 figs.

Martz, J.C.; Hess, D.W.; Anderson, W.E.

1989-01-01T23:59:59.000Z

447

Implementation of controlled phase shift gates and Collins version of Deutsch-Jozsa algorithm on a quadrupolar spin-7/2 nucleus using non-adiabatic geometric phases  

E-Print Network [OSTI]

In this work Controlled phase shift gates are implemented on a qaudrupolar system, by using non-adiabatic geometric phases. A general procedure is given, for implementing controlled phase shift gates in an 'N' level system. The utility of such controlled phase shift gates, is demonstrated here by implementing 3-qubit Deutsch-Jozsa algorithm on a 7/2 quadrupolar nucleus oriented in a liquid crystal matrix.

T. Gopinath; Anil Kumar

2009-09-22T23:59:59.000Z

448

High-pressure microhydraulic actuator  

DOE Patents [OSTI]

Electrokinetic ("EK") pumps convert electric to mechanical work when an electric field exerts a body force on ions in the Debye layer of a fluid in a packed bed, which then viscously drags the fluid. Porous silica and polymer monoliths (2.5-mm O.D., and 6-mm to 10-mm length) having a narrow pore size distribution have been developed that are capable of large pressure gradients (250-500 psi/mm) when large electric fields (1000-1500 V/cm) are applied. Flowrates up to 200 .mu.L/min and delivery pressures up to 1200 psi have been demonstrated. Forces up to 5 lb-force at 0.5 mm/s (12 mW) have been demonstrated with a battery-powered DC-DC converter. Hydraulic power of 17 mW (900 psi@ 180 uL/min) has been demonstrated with wall-powered high voltage supplies. The force and stroke delivered by an actuator utilizing an EK pump are shown to exceed the output of solenoids, stepper motors, and DC motors of similar size, despite the low thermodynamic efficiency.

Mosier, Bruce P. (San Francisco, CA) [San Francisco, CA; Crocker, Robert W. (Fremont, CA) [Fremont, CA; Patel, Kamlesh D. (Dublin, CA) [Dublin, CA

2008-06-10T23:59:59.000Z

449

Patient radiation dose in prospectively gated axial CT coronary angiography and retrospectively gated helical technique with a 320-detector row CT scanner  

SciTech Connect (OSTI)

Purpose: The aim of this study was to evaluate radiation dose to patients undergoing computed tomography coronary angiography (CTCA) for prospectively gated axial (PGA) technique and retrospectively gated helical (RGH) technique. Methods: Radiation doses were measured for a 320-detector row CT scanner (Toshiba Aquilion ONE) using small sized silicon-photodiode dosimeters, which were implanted at various tissue and organ positions within an anthropomorphic phantom for a standard Japanese adult male. Output signals from photodiode dosimeters were read out on a personal computer, from which organ and effective doses were computed according to guidelines published in the International Commission on Radiological Protection Publication 103. Results: Organs that received high doses were breast, followed by lung, esophagus, and liver. Breast doses obtained with PGA technique and a phase window width of 16% at a simulated heart rate of 60 beats per minute were 13 mGy compared to 53 mGy with RGH technique using electrocardiographically dependent dose modulation at the same phase window width as that in PGA technique. Effective doses obtained in this case were 4.7 and 20 mSv for the PGA and RGH techniques, respectively. Conversion factors of dose length product to the effective dose in PGA and RGH were 0.022 and 0.025 mSv mGy{sup -1} cm{sup -1} with a scan length of 140 mm. Conclusions: CTCA performed with PGA technique provided a substantial effective dose reduction, i.e., 70%-76%, compared to RGH technique using the dose modulation at the same phase windows as those in PGA technique. Though radiation doses in CTCA with RGH technique were the same level as, or some higher than, those in conventional coronary angiography (CCA), the use of PGA technique reduced organ and effective doses to levels less than CCA except for breast dose.

Seguchi, Shigenobu; Aoyama, Takahiko; Koyama, Shuji; Fujii, Keisuke; Yamauchi-Kawaura, Chiyo [Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan) and Department of Medical Technology, Nagoya Daini Red Cross Hospital, Myouken-chou, Showa-ku, Nagoya 466-8650 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan); Section of Radiological Protection, National Institute of Radiological Sciences, Anagawa, Inage-ku, Chiba 263-8555 (Japan); Graduate School of Medicine, Nagoya University, Daikominami, Higashi-ku, Nagoya 461-8673 (Japan)

2010-11-15T23:59:59.000Z

450

Passive tire pressure sensor and method  

DOE Patents [OSTI]

A surface acoustic wave device includes a micro-machined pressure transducer for monitoring tire pressure. The device is configured having a micro-machined cavity that is sealed with a flexible conductive membrane. When an external tire pressure equivalent to the cavity pressure is detected, the membrane makes contact with ridges on the backside of the surface acoustic wave device. The ridges are electrically connected to conductive fingers of the device. When the detected pressure is correct, selected fingers on the device will be grounded producing patterned acoustic reflections to an impulse RF signal. When the external tire pressure is less than the cavity reference pressure, a reduced reflected signal to the receiver results. The sensor may further be constructed so as to identify itself by a unique reflected identification pulse series.

Pfeifer, Kent Bryant (Los Lunas, NM); Williams, Robert Leslie (Albuquerque, NM); Waldschmidt, Robert Lee (Calgary, CA); Morgan, Catherine Hook (Ann Arbor, MI)

2007-09-04T23:59:59.000Z

451

Top Hat Pressure System Hyperbaric Test Analysis | Department...  

Broader source: Energy.gov (indexed) [DOE]

Top Hat Pressure System Hyperbaric Test Analysis Top Hat Pressure System Hyperbaric Test Analysis This file contains data from pressure measurements inside Top Hat 4....

452

Pressure and volume in the first law of black hole thermodynamics  

Science Journals Connector (OSTI)

The mass of a black hole is interpreted, in terms of thermodynamic potentials, as being the enthalpy, with the pressure given by the cosmological constant. The volume is then defined as being the Legendre transform of the pressure, and the resulting relation between volume and pressure is explored in the case of positive pressure. A virial expansion is developed and a van der Waals like critical point determined. The first law of black hole thermodynamics includes a PdV term which modifies the maximal efficiency of a Penrose process. It is shown that, in four-dimensional spacetime with a negative cosmological constant, an extremal charged rotating black hole can have an efficiency of up to 75%, while for an electrically neutral rotating black hole this figure is reduced to 52%, compared to the corresponding values of 50% and 29% respectively when the cosmological constant is zero.

Brian P Dolan

2011-01-01T23:59:59.000Z

453

PynPoint Code for Exoplanet Imaging  

E-Print Network [OSTI]

We announce the public release of PynPoint, a Python package that we have developed for analysing exoplanet data taken with the angular differential imaging observing technique. In particular, PynPoint is designed to model the point spread function of the central star and to subtract its flux contribution to reveal nearby faint companion planets. The current version of the package does this correction by using a principal component analysis method to build a basis set for modelling the point spread function of the observations. We demonstrate the performance of the package by reanalysing publicly available data on the exoplanet beta Pictoris b, which consists of close to 24,000 individual image frames. We show that PynPoint is able to analyse this typical data in roughly 1.5 minutes on a Mac Pro, when the number of images is reduced by co-adding in sets of 5. The main computational work parallelises well as a result of a reliance on SciPy and NumPy functions. For this calculation the peak memory load is 6Gb, ...

Amara, Adam; Akeret, Joel

2014-01-01T23:59:59.000Z

454

An X-point ergodic divertor  

SciTech Connect (OSTI)

A new ergodic divertor is proposed. It utilizes a system of external (n = 3) coils arranged to generate overlapping magnetic islands in the edge region of a diverted tokamak and connect the randomized field lines to the external (cold) divertor plate. The novel feature in the configuration is the placement of the external coils close to the X-point. A realistic design of the external coil set is studied by using the field line tracing method for a low aspect ratio (A {approx equal} 3) tokamak. Two types of effects are observed. First, by placing the coils close to the X-point, where the poloidal magnetic field is weak and the rational surfaces are closely packed only a moderate amount of current in the external coils is needed to ergodize the edge region. This ergodized edge enhances the edge transport in the X-point region and leads to the potential of edge profile control and the avoidance of edge localized modes (ELMs). Furthermore, the trajectories of the field lines close to the X-point are modified by the external coil set, causing the hit points on the external divertor plates to be randomized and spread out in the major radius direction. A time-dependent modulation of the currents in the external (n = 3) coils can potentially spread the heat flux more uniformly on the divertor plate avoiding high concentration of the heat flux. 10 refs., 9 figs.

Chu, M.S.; Jensen, T.H.; La Haye, R.J.; Taylor, T.S.; Evans, T.E.

1991-10-01T23:59:59.000Z

455

High Pressure Hydrogen Tank Manufacturing  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Workshop Workshop High Pressure Hydrogen Tank Manufacturing Mark Leavitt Quantum Fuel Systems Technologies Worldwide, Inc. August 11, 2011 This presentation does not contain any proprietary, confidential, or otherwise restricted information History of Innovations... Announced breakthrough in all-composite lightweight, high capacity, low-cost fuel storage technologies. * Developed a series of robust, OEM compatible electronic control products. Developed H 2 storage system for SunLine Tran-sit Hythane® bus. Awarded patent for integrated module including in-tank regulator * Developed high efficiency H 2 fuel storage systems for DOE Future Truck programs Developed H 2 storage and metering system for Toyota's FCEV platform. First to certify 10,000 psi systems in Japan

456

Analytical expressions for the gate utilization factors of passive multiplicity counters including signal build-up  

SciTech Connect (OSTI)

In the realm of nuclear safeguards, passive neutron multiplicity counting using shift register pulse train analysis to nondestructively quantify Pu in product materials is a familiar and widely applied technique. The approach most commonly taken is to construct a neutron detector consisting of {sup 3}He filled cylindrical proportional counters embedded in a high density polyethylene moderator. Fast neutrons from the item enter the moderator and are quickly slowed down, on timescales of the order of 1-2 {micro}s, creating a thermal population which then persists typically for several 10's {micro}s and is sampled by the {sup 3}He detectors. Because the initial transient is of comparatively short duration it has been traditional to treat it as instantaneous and furthermore to approximate the subsequent capture time distribution as exponential in shape. With these approximations simple expressions for the various Gate Utilization Factors (GUFs) can be obtained. These factors represent the proportion of time correlated events i.e. Doubles and Triples signal present in the pulse train that is detected by the coincidence gate structure chosen (predelay and gate width settings of the multiplicity shift register). More complicated expressions can be derived by generalizing the capture time distribution to multiple time components or harmonics typically present in real systems. When it comes to applying passive neutron multiplicity methods to extremely intense (i.e. high emission rate and highly multiplying) neutron sources there is a drive to use detector types with very fast response characteristics in order to cope with the high rates. In addition to short pulse width, detectors with a short capture time profile are also desirable so that a short coincidence gate width can be set in order to reduce the chance or Accidental coincidence signal. In extreme cases, such as might be realized using boron loaded scintillators, the dieaway time may be so short that the build-up (thermalization transient) within the detector cannot be ignored. Another example where signal build-up might be observed is when a {sup 3}He based system is used to track the evolution of the time correlated signal created by a higher multiplying item within a reflective configuration such as the measurement of a spent fuel assembly. In this work we develop expressions for the GUFs which include signal build-up.

Croft, Stephen [Los Alamos National Laboratory; Evans, Louise G [Los Alamos National Laboratory; Schear, Melissa A [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

457

Universal conductance fluctuations in electrolyte-gated SrTiO{sub 3} nanostructures  

SciTech Connect (OSTI)

We report low-temperature magnetoconductance measurements of a patterned two-dimensional electron system at the surface of strontium titanate, gated by an ionic liquid electrolyte. We observe universal conductance fluctuations, a signature of phase-coherent transport in mesoscopic devices. From the universal conductance fluctuations, we extract an electron dephasing rate linear in temperature, characteristic of electron-electron interaction in a disordered conductor. The dephasing rate has a temperature-independent offset, which could possibly be explained by the presence of unscreened local magnetic moments in the sample.

Stanwyck, Sam W. [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States)] [Department of Applied Physics, Stanford University, Stanford, California 94305 (United States); Gallagher, P.; Williams, J. R.; Goldhaber-Gordon, David [Department of Physics, Stanford University, Stanford, California 94305 (United States)] [Department of Physics, Stanford University, Stanford, California 94305 (United States)

2013-11-18T23:59:59.000Z

458

Simple Template-Based Method to Produce Bradbury-Nielsen Gates  

Science Journals Connector (OSTI)

A Bradbury-Nielsen gate (BNG) consists of two interleaved and electrically isolated sets of wires and can transmit or deflect charged particles by applying a varying voltage difference across the two wire sets. We present a simple template-based method to fabricate \\{BNGs\\} with wire spacings as small as 50 ?m with minimal use of a microscope. The small wire spacing allows modulation rates at tens of megahertz. Using this method, we have fabricated four \\{BNGs\\} with wire spacings of 500, 200, 100, and 50 ?m using 10 ?m gold-coated tungsten wires. The performance of the four \\{BNGs\\} is characterized using an imaging detector and compared with theoretical predictions.

Oh Kyu Yoon; Ignacio A. Zuleta; Matthew D. Robbins; Griffin K. Barbula; Richard N. Zare

2007-01-01T23:59:59.000Z

459

Tipping Point Renewable Energy | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Tipping Point Renewable Energy Jump to: navigation, search Logo: Tipping Point Renewable Energy Name Tipping Point Renewable Energy Place Columbus, Ohio Zip 43221 Sector Solar Website http://tipenergy.com/ Coordinates 40.0097883°, -83.0683519° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.0097883,"lon":-83.0683519,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

460

Midnight Point Geothermal Project | Open Energy Information  

Open Energy Info (EERE)

Midnight Point Geothermal Project Midnight Point Geothermal Project Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Development Project: Midnight Point Geothermal Project Project Location Information Coordinates 43.548333333333°, -119.97611111111° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.548333333333,"lon":-119.97611111111,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Building Green in Greensburg: Prairie Pointe Townhomes  

Broader source: Energy.gov (indexed) [DOE]

Prairie Pointe Townhomes Prairie Pointe Townhomes After a tornado destroyed most of Greensburg, Kansas, in 2007, the residents needed affordable housing. Prairie Pointe Townhomes is a low-income rental development that was completed in July 2008. Eight of the 16 units in this townhome complex were awarded the first residential U.S. Green Building Council Leadership in Energy and Environmental Design (LEED ® ) Platinum rating in Kansas and are estimated to use about 50% less energy than similar buildings built to existing building codes. ENERGY EFFICIENCY FEATURES * Well-insulated 2 x 6 walls use blown-in cellulose insulation with an R-Value of 22.5 to prevent heat loss and save energy * Well-insulated roof with an R-value of R-38 prevents heat loss through the roof and helps keep building cool in summer

462

Symmetry and Dirac points in graphene spectrum  

E-Print Network [OSTI]

Existence and stability of Dirac points in the dispersion relation of operators periodic with respect to the hexagonal lattice is investigated for different sets of additional symmetries. The following symmetries are considered: rotation by $2\\pi/3$ and inversion, rotation by $2\\pi/3$ and horizontal reflection, inversion or reflection with weakly broken rotation symmetry, and the case where no Dirac points arise: rotation by $2\\pi/3$ and vertical reflection. All proofs are based on symmetry considerations and are elementary in nature. In particular, existence of degeneracies in the spectrum is proved by a transplantation argument (which is deduced from the (co)representation of the relevant symmetry group). The conical shape of the dispersion relation is obtained from its invariance under rotation by $2\\pi/3$. Persistence of conical points when the rotation symmetry is weakly broken is proved using a geometric phase in one case and parity of the eigenfunctions in the other.

Gregory Berkolaiko; Andrew Comech

2014-12-28T23:59:59.000Z

463

Generalized Attractor Points in Gauged Supergravity  

SciTech Connect (OSTI)

The attractor mechanism governs the near-horizon geometry of extremal black holes in ungauged 4D N=2 supergravity theories and in Calabi-Yau compactifications of string theory. In this paper, we study a natural generalization of this mechanism to solutions of arbitrary 4D N=2 gauged supergravities. We define generalized attractor points as solutions of an ansatz which reduces the Einstein, gauge field, and scalar equations of motion to algebraic equations. The simplest generalized attractor geometries are characterized by non-vanishing constant anholonomy coefficients in an orthonormal frame. Basic examples include Lifshitz and Schroedinger solutions, as well as AdS and dS vacua. There is a generalized attractor potential whose critical points are the attractor points, and its extremization explains the algebraic nature of the equations governing both supersymmetric and non-supersymmetric attractors.

Kachru, Shamit; /Stanford U., Phys. Dept. /SLAC; Kallosh, Renata; /Stanford U., Phys. Dept.; Shmakova, Marina; /KIPAC, Menlo Park /SLAC /Stanford U., Phys. Dept.

2011-08-15T23:59:59.000Z

464

GreatPoint Energy | Open Energy Information  

Open Energy Info (EERE)

GreatPoint Energy GreatPoint Energy Jump to: navigation, search Name GreatPoint Energy Address 222 Third Street Place Cambridge, Massachusetts Zip 02142 Sector Biomass Product Converts coal, petroleum coke and biomass into natural gas Website http://www.greatpointenergy.co Coordinates 42.3672873°, -71.0814466° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.3672873,"lon":-71.0814466,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

465

Microsoft Word - CX-Harbour_Pointe_130621  

Broader source: Energy.gov (indexed) [DOE]

5, 2013 5, 2013 REPLY TO ATTN OF: KEC-4 SUBJECT: Environmental Clearance Memorandum Toni L. Timberman Project Manager - TSE-TPP-2 Proposed Action: Harbour Pointe Small Generator Integration Categorical Exclusion Applied (from Subpart D, 10 C.F.R. Part 1021): B1.7 Electronic Equipment Location: Mukilteo, Snohomish County, Washington Proposed by: Bonneville Power Administration (BPA) Description of the Proposed Action: BPA proposes to integrate UniEnergy Technologies' (UET) 1.5-megawatt battery generation project into BPA's balancing authority (BA) in response to a UET small generator interconnection request. The proposed point of interconnection is at Snohomish Public Utility District's (SnoPUD) Harbour Pointe Substation. In order to integrate

466

Phase-shifting point diffraction interferometer  

DOE Patents [OSTI]

Disclosed is a point diffraction interferometer for evaluating the quality of a test optic. In operation, the point diffraction interferometer includes a source of radiation, the test optic, a beam divider, a reference wave pinhole located at an image plane downstream from the test optic, and a detector for detecting an interference pattern produced between a reference wave emitted by the pinhole and a test wave emitted from the test optic. The beam divider produces separate reference and test beams which focus at different laterally separated positions on the image plane. The reference wave pinhole is placed at a region of high intensity (e.g., the focal point) for the reference beam. This allows reference wave to be produced at a relatively high intensity. Also, the beam divider may include elements for phase shifting one or both of the reference and test beams. 8 figs.

Medecki, H.

1998-11-10T23:59:59.000Z

467

As you prepare for your upcoming beam time, please be aware that construction is planned to update SLAC Gate 17 with RFID proximity card access hardware and to change the stairs next to the Security hut to an ADA compliant ramp. Please forward this to your proposal collaborators (and ensure that all users have registered and completed training before they arrive). This construction is scheduled to begin Tuesday 5/28 and be completed by 6/28. During this construction, access to the LCLS and SSRL buildings and experimental facilities will be provided as follows: VEHICLES ONLY THROUGH GATE 17 5/28-6/28 0600-1530 (6 am-3:30 pm) Construction Zone. Only VEHICLE traffic will be allowed access through Gate 17 and flagman will provide traffic control. 1530-1800 (3:30-6:00 pm) Assumes construction will have stopped for the day; both traffic lanes will be open for vehicles. 1800-0600 (6 pm-6 am) As now, Gate 17 will be closed or barricaded overnight. PEDESTRIANS ONLY THROUGH GATE 16 5/28-6/28 The pedestrian turnstile at Gate 16A will not change. The turnstile is available for pedestrian use 24/7 as long as the individual has a valid SLAC ID badge (and there is a guard at Gate 30 to 'buzz' them through). 0700-1600 (6 am-4 pm) Pedestrians who would normally walk through Gate 17 will instead follow the detour to Gate 16 swing gate which will be unlocked and staffed by Security. A valid SLAC ID badge is needed to enter; new users without IDs will be allowed to proceed for check-in and badging after confirmation with the User Research Administration Office (see detour map attached). FYI - After the construction is completed and proximity card readers are fully functional, users and staff will enter Gates 17 and 30 using an activated RFID proximity card. More details to follow.  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Automated Proximity Access at Gate 17 and Sector 30 Automated Proximity Access at Gate 17 and Sector 30 New SLAC ID badges with embedded RFID are used to activate these gates and for off-hours access at the main entrance off Sand Hill Road as well as Alpine Road (gates will be accessible 24/7) . New user badges include this proximity gate activation feature, but older photo IDs need to be updated. Users are advised to register, complete training and contact the User Research Administration (URA) office before arrival for beam time to help facilitate access. During the transition period, July 26-August 9, 2013 users can inform Security at Gate 17 that they are checking in and proceed to the URA office in Building 120; however, after August 9 th , users without a proximity activated ID need to stop at

468

Fixed point theorems in ultrametric spaces  

E-Print Network [OSTI]

Point Theorems in Ultrametric Spaces. (May 1972) Steven E. Fullbright, B. A. , Texas A&M University M. S. , Texas A&M University Directed by: L. F. Guseman, Jr. and Jack Bryant Let (X, d) be an ultrametric space and f a contractive selfmap of X.... It is shown that the existence of fixed points of f is related to simple properties of the metric d. iv ACKNOWLEDGEMENTS I wish to thank the following people for their assistance and support in writing this thesis: Larry Guseman, who provided guidance...

Fullbright, Steven Edward

2012-06-07T23:59:59.000Z

469

A Computer Program for Simulating Transient Behavior in Steam Turbine Stage Pressure of AHWR  

SciTech Connect (OSTI)

It is proposed to couple the Advanced Heavy water reactor (AHWR), which is being developed by Bhabha Atomic Research Centre, India, with a desalination plant. The objective of this coupling is to produce system make-up and domestic water. The proposed desalination plant needs about 1.9 kg/sec of steam and the minimum pressure requirement is 3 bars. The desalination plant can be fed with bled steam extracted from a suitable stage in low pressure turbine. As the turbine stage pressure changes with the load, it is essential to know the availability of bled steam at aforesaid pressure for various load condition. The objective of the present study is to identify a suitable extraction point so as to ensure availability of steam at desired condition for desalination plant, even at part load conditions. In order to fulfill the above objective a steam and feed system analysis code was developed which incorporates the mathematical formulation of different components of the steam and feed system such as, high pressure (HP) and low pressure (LP) turbines, re-heater, feed heaters etc. The dynamic equations are solved simultaneously to obtain the stage pressure at various load conditions. Based on the results obtained, the suitable extraction stage in LP turbine was selected. This enables to determine the lowest possible part load operation up to which availability of desalination plant could be ensured. (authors)

Dutta, Anu; Thangamani, I.; Chakraborty, G.; Ghosh, A.K.; Kushwaha, H.S. [Bhabha Atomic Research Centre, Trombay, Mumbai - 400 085 (India)

2006-07-01T23:59:59.000Z

470

Portable high precision pressure transducer system  

DOE Patents [OSTI]

A high precision pressure transducer system is described for checking the reliability of a second pressure transducer system used to monitor the level of a fluid confined in a holding tank. Since the response of the pressure transducer is temperature sensitive, it is continually housed in an battery powered oven which is configured to provide a temperature stable environment at specified temperature for an extended period of time. Further, a high precision temperature stabilized oscillator and counter are coupled to a single board computer to accurately determine the pressure transducer oscillation frequency and convert it to an applied pressure. All of the components are powered by the batteries which during periods of availability of line power are charged by an on board battery charger. The pressure readings outputs are transmitted to a line printer and a vacuum fluorescent display. 2 figures.

Piper, T.C.; Morgan, J.P.; Marchant, N.J.; Bolton, S.M.

1994-04-26T23:59:59.000Z

471

Temperature dependence of a high- T c single-flux-quantum logic gate up to 50 K  

Science Journals Connector (OSTI)

Basic characteristics of a simple single-flux-quantum (SFQ) logic gate using high- T c material and Josephson junction ( NdBa 2 Cu 3 O 7?? and focused ion beamjunction) have been investigated. The logic gate consists of an rf-superconducting quantum interference device (rf-SQUID) and a dc-SQUID. In the logic gate elementary SFQ logic operations such as generating SFQ (dc/SFQ) and providing simultaneous readout (SFQ/dc) have been confirmed up to 50 K. The temperature dependencies of the output voltage level and the critical current-normal resistance (I c R n ) product were compared and the decreasing tendency of the output voltage level for increasing temperature was found to be more rapid than that of the I c R n product.

Kazuo Saitoh; Tadashi Utagawa; Youichi Enomoto

1998-01-01T23:59:59.000Z

472

Electron Transport Behavior on Gate Length Scaling in Sub-50 nm GaAs Metal Semiconductor Field Effect Transistors  

SciTech Connect (OSTI)

Short channel GaAs Metal Semiconductor Field Effect Transistors (MESFETs) have been fabricated with gate length to 20 nm, in order to examine the characteristics of sub-50 nm MESFET scaling. Here the rise in the measured transconductance is mainly attributed to electron velocity overshoot. For gate lengths below 40 nm, however, the transconductance drops suddenly. The behavior of velocity overshoot and its degradation is investigated and simulated by using a transport model based on the retarded Langevin equation (RLE). This indicates the existence of a minimum acceleration length needed for the carriers to reach the overshoot velocity. The argument shows that the source resistance must be included as an internal element, or appropriate boundary condition, of relative importance in any model where the gate length is comparable to the inelastic mean free path of the carriers.

Han, Jaeheon [Department of Electronic Engineering, Kangnam University, 111 Gugal-dong, Giheung-gu, Yongin-city, Gyeonggi-do, Korea 446-702 (Korea, Republic of)

2011-12-23T23:59:59.000Z

473

Pressure maintenance in a volatile oil reservoir  

E-Print Network [OSTI]

reservoir. Historically, produced and makeup gas was injected to maintain pressure. In today's economy. gas has an increasing market value compared to the price of oil. Therefore, it becomes increasingly difficult to justify economically the injection... of produced gas and the purchase of additional make up gas to maintain reservoir pressure. Accordingly, water injection to maintain pressure becomes more favorable economically. This research investigated water injection into a volatile oil reservoir...

Schuster, Bruce Alan

2012-06-07T23:59:59.000Z

474

Dynamic pore pressure ahead of the bit  

SciTech Connect (OSTI)

An analytic approach is presented in an attempt to improve the understanding of the mechanism of pore-pressure invasion ahead of the bit during drilling. An axisymmetric model accounts for a zone of damaged permeability (skin) on the work front. The effect of rate of penetration (ROP) and rotation speed on the pore pressure at the depth of cut is significant in the lower range of permeabilities, while for the high permeabilities, the skin has an overwhelming control on the pressure invasion.

Peltier, B.; Atkinson, C.

1987-12-01T23:59:59.000Z

475

Electrical resistance of Evanohm under pressure  

Science Journals Connector (OSTI)

The electrical resistance of Evanohm wire has been determined as a function of hydrostatic pressure. A Teflon cell with a novel type of electrical feedthrough was used to contain the fluid medium. The resistance was found to decrease approximately linearly by 0.3% up to 27 kilobar. The remarkably small variation of its resistance with temperature and pressure makes Evanohm a suitable material for strain measurements under pressure.

P. Andersson; G. Bckstrm

1975-01-01T23:59:59.000Z

476

ATS 351, Spring 2010 Satellite 50 points  

E-Print Network [OSTI]

sensor is a radar. Passive sensors do not emit any radiation, and only detect naturally occurring their own radiation, and measure the return signal that is sent back to them. A good example of an active radiation that is emitted. Most satellites are passive sensors. 3. (5 points). Label each of the following

Rutledge, Steven

477

Ground Vibration Measurements at LHC Point 4  

SciTech Connect (OSTI)

Ground vibration was measured at Large Hadron Collider (LHC) Point 4 during the winter shutdown in February 2012. This report contains the results, including power and coherence spectra. We plan to collect and analyze vibration data from representative collider halls to inform specifications for future linear colliders, such as ILC and CLIC. We are especially interested in vibration correlations between final focus lens locations.

Bertsche, Kirk; /SLAC; Gaddi, Andrea; /CERN

2012-09-17T23:59:59.000Z

478

Effect of pressure anisotropy on magnetorotational instability  

SciTech Connect (OSTI)

It is shown that two new instabilities of hybrid type can occur in a rotating magnetized plasma with anisotropic pressure, i.e., the rotational firehose instability and the rotational mirror instability. In the case of {beta}{sub parallel} > {beta}{sub perpendicular}, where {beta}{sub parallel} and {beta}{sub -perpendicular} are the ratios of the parallel and perpendicular plasma pressure to the magnetic field pressure, the pressure anisotropy tends to suppress both new instabilities; in the case {beta}{sub perpendicular} > {beta}{sub parallel}, it leads to their strengthening. In the latter case, the perturbations considered can be unstable even if the Velikhov instability criterion is not satisfied.

Mikhailovskii, A. B. [Russian Research Centre Kurchatov Institute, Institute of Nuclear Fusion (Russian Federation); Lominadze, J. G. [Georgian National Astrophysical Observatory (United States)], E-mail: j.lominadze@astro-ge.org; Churikov, A. P. [Syzran Branch of Samara Technical University (Russian Federation); Erokhin, N. N. [Russian Research Centre Kurchatov Institute, Institute of Nuclear Fusion (Russian Federation); Erokhin, N. S. [Russian Academy of Sciences, Space Research Institute (Russian Federation); Tsypin, V. S

2008-02-15T23:59:59.000Z

479

Viscosity of liquid Fe at high pressure  

Science Journals Connector (OSTI)

Synchrotron x-ray radiography has been used to measure the viscosity of pure liquid Fe at high pressure and temperature in a large volume press. A probe sphere rising through liquid Fe at high pressure and temperature is imaged, in situ, allowing for the derivation of sample viscosity through a modified form of Stokes equation. The effect of pressure on viscosity is fit by the semi empirical framework for transport coefficients in liquid metals, providing experimental verification of constant viscosity at the pressure-dependent melting temperature of liquid Fe where no change in liquid structure occurs.

Michael D. Rutter; Richard A. Secco; Hongjian Liu; Takeyuki Uchida; Mark L. Rivers; Stephen R. Sutton; Yanbin Wang

2002-08-14T23:59:59.000Z

480

Putting the pressure on carbon dioxide | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Putting the pressure on carbon dioxide Improving the chances for fuel recovery and carbon sequestration Artwork from this research graces the cover of Environmental Science...

Note: This page contains sample records for the topic "gates pressure point" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

High-Pressure Tube Trailers and Tanks  

Broader source: Energy.gov (indexed) [DOE]

bending stress: continuous fiber vessels and vessels made of replicants Conformable tanks require internal stiffeners (ribs) to efficiently support the pressure and minimize...

482

Alternative Strategies for Low Pressure End Uses  

Broader source: Energy.gov [DOE]

This tip sheet outlines alternative strategies for low-pressure end uses as a pathway to reduced compressed air energy costs.

483

Atmospheric Pressure Discharges: Traveling Wave Plasma Sources  

Science Journals Connector (OSTI)

Microwave sustained, atmospheric pressure plasmas are finding an increasing number of applications ... interest in the developing and investigating of appropriate plasma sources [1, 2].

Z. Zakrzewski; M. Moisan

1999-01-01T23:59:59.000Z

484

Conceptual Design for Pressure Swing Distillation.  

E-Print Network [OSTI]

??The separation of homogenous azeotropic mixtures is a common task in the chemical industry. In the literature, pressure swing distillation is often mentioned as an (more)

Bozzacco, Carmen

2006-01-01T23:59:59.000Z

485

Geothermal: Sponsored by OSTI -- Reservoir Pressure Management  

Office of Scientific and Technical Information (OSTI)

Reservoir Pressure Management Geothermal Technologies Legacy Collection HelpFAQ | Site Map | Contact Us | Admin Log On HomeBasic Search About Publications Advanced Search New Hot...

486

High-Pressure Model Catalyst System | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of one atmosphere or below in a reactor situated just below an ultra-high vacuum (UHV) chamber. In particular, heterogeneous catalytic reactions at realistic pressures over...

487

Documentation Requirements for Pressurized Experiment Equipment  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

complexity of the system. 1. Description of apparatus a. Description of the assembly and operation of the system. b. State the maximum working pressure, working fluid (liquid or...

488

Heating tar sands formations while controlling pressure  

DOE Patents [OSTI]

Methods for treating a tar sands formation are described herein. Methods may include heating at least a section of a hydrocarbon layer in the formation from a plurality of heaters located in the formation. A pressure in the majority of the section may be maintained below a fracture pressure of the formation. The pressure in the majority of the section may be reduced to a selected pressure after the average temperature reaches a temperature that is above 240.degree. C. and is at or below pyrolysis temperatures of hydrocarbons in the section. At least some hydrocarbon fluids may be produced from the formation.

Stegemeier, George Leo (Houston, TX) [Houston, TX; Beer, Gary Lee (Houston, TX) [Houston, TX; Zhang, Etuan (Houston, TX) [Houston, TX

2010-01-12T23:59:59.000Z

489

Gate Metal-Induced Diffusion and Interface Reactions in Hf Oxide Films on Si  

SciTech Connect (OSTI)

When metal electrodes are deposited on a high-{kappa} metal-oxide/SiO{sub 2}/Si stack, chemical interactions may occur both at the metal/high-{kappa} and the high-{kappa}/Si interfaces, causing changes in electrical performance. We report here results from medium energy ion scattering (MEIS) and x-ray photoelectron (XPS) studies of oxygen and silicon transport and interfacial layer reactions in multilayer gate stacks. Our results show that Ti deposition on HfO{sub 2}/SiO{sub 2}/Si stacks causes reduction of the SiO{sub 2} interfacial layer and (to a lesser extent) the HfO{sub 2} layer. Silicon atoms initially present in the interfacial SiO{sub 2} layer incorporate into the bottom of the high-{kappa} layer. Some evidence for titanium-silicon interdiffusion through the high-{kappa} film in the presence of a titanium gate in crystalline HfO{sub 2} films is also reported.

Goncharova, Lyudmila V.; Dalponte, Mateus; Celik, Ozgur; Garfunkel, Eric; Gustafsson, Torgny [Departments of Physics and Chemistry, and Laboratory for Surface Modification, Rutgers University, Piscataway, NJ 08854 (United States); Lysaght, Pat S.; Bersuker, Gennadi I. [Sematech, Austin, Texas 78741 (United States)

2007-09-26T23:59:59.000Z

490

Structure of a Blm10 Complex Reveals Common Mechanisms for Proteasome Binding and Gate Opening  

SciTech Connect (OSTI)

The proteasome is an abundant protease that is critically important for numerous cellular pathways. Proteasomes are activated in vitro by three known classes of proteins/complexes, including Blm10/PA200. Here, we report a 3.4 {angstrom} resolution crystal structure of a proteasome-Blm10 complex, which reveals that Blm10 surrounds the proteasome entry pore in the 1.2 MDa complex to form a largely closed dome that is expected to restrict access of potential substrates. This architecture and the observation that Blm10 induces a disordered proteasome gate structure challenge the assumption that Blm10 functions as an activator of proteolysis in vivo. The Blm10 C terminus binds in the same manner as seen for 11S activators and inferred for 19S/PAN activators and indicates a unified model for gate opening. We also demonstrate that Blm10 acts to maintain mitochondrial function. Consistent with the structural data, the C-terminal residues of Blm10 are needed for this activity.

Sadre-Bazzaz, K.; Robinson, H.; Whitby, F. G.; Formosa, T.; Hill, C. P.

2010-03-12T23:59:59.000Z

491

Image enhancement using a range gated MCPII video system with a 180-ps FWHM shutter  

SciTech Connect (OSTI)

The video image of a target submerged in a scattering medium was improved through the use of range gating techniques. The target, an Air Force resolution chart, was submerged in 18 in. of a colloidal suspension of tincture green soap in water. The target was illuminated with pulsed light from a Raman shifted, frequency-doubled, ND:YAG laser having a wavelength of 559 mm and a width of 20 ps FWHM. The laser light reflected by the target along with the light scattered by the soap, was imaged onto a microchannel-plate image intensifier (MCPII). The output from the MCPII was then recorded with a RS-170 video camera and a video digitizer. The MCPII was gated on with a pulse synchronously timed to the laser pulse. The relative timing between the reflected laser pulse and the shuttering of the MCPII determined the distance to the imaged region. The resolution of the image was influenced by the MCPII`s shutter time. A comparison was made between the resolution of images obtained with 6 ns, 500 ps and 180 ps FWHM (8 ns, 750 ps and 250 ps off-to-off) shutter times. it was found that the image resolution was enhanced by using the faster shutter since the longer exposures allowed light scattered by the water to be recorded too. The presence of scattered light in the image increased the noise, thereby reducing the contrast and the resolution.

Thomas, M.C. [Special Technologies Laboratory, Santa Barbara, CA (United States); Yates, G.J. [Los Alamos National Lab., NM (United States); Zadgarino, P. [Sharpenit, Ellwood, CA (United States)

1995-09-01T23:59:59.000Z

492

The elusive hair cell gating spring, a potential role for the lipid membrane  

Science Journals Connector (OSTI)

Deflection of auditory hair cell hair bundle results in a nonlinear (i.e. non Hookean) force-displacement relationships whose molecular mechanism remains elusive. A gating spring model posits that mechanosensitive channels are in series with a spring such that channel opening puts the activation gate in series with the spring thus reducing spring extension until further stimulation is provided. Here we present a theoretical analysis of whether the lipid membrane might be the source of nonlinearity. A hair bundle kinematic model is coupled with a lipid membrane model that includes a diffusible compartment into which the tip-link embeds and a minimally diffusive reservoir pool. Using physiological parameters this model was capable of reproducing nonlinear force-displacement plots including a negative stiffness component but required a standing tip-link tension. In addition this model suggests the mechanotransducer channel is most sensitive to curvature forces that are located within 2 nm of the tip-link. [Work supported in part by Grant Nos. R01-DC07910 and R01-DC03896 from the NIDCD of NIH and by The Timoshenko fund from Mechanical Engineering Department at Stanford University].

Charles R. Steele; Sunil Puria

2013-01-01T23:59:59.000Z

493

Dithering Strategies and Point-Source Photometry  

SciTech Connect (OSTI)

The accuracy in the photometry of a point source depends on the point-spread function (PSF), detector pixelization, and observing strategy. The PSF and pixel response describe the spatial blurring of the source, the pixel scale describes the spatial sampling of a single exposure, and the observing strategy determines the set of dithered exposures with pointing offsets from which the source flux is inferred. In a wide-field imaging survey, sources of interest are randomly distributed within the field of view and hence are centered randomly within a pixel. A given hardware configuration and observing strategy therefore have a distribution of photometric uncertainty for sources of fixed flux that fall in the field. In this article we explore the ensemble behavior of photometric and position accuracies for different PSFs, pixel scales, and dithering patterns. We find that the average uncertainty in the flux determination depends slightly on dither strategy, whereas the position determination can be strongly dependent on the dithering. For cases with pixels much larger than the PSF, the uncertainty distributions can be non-Gaussian, with rms values that are particularly sensitive to the dither strategy. We also find that for these configurations with large pixels, pointings dithered by a fractional pixel amount do not always give minimal average uncertainties; this is in contrast to image reconstruction for which fractional dithers are optimal. When fractional pixel dithering is favored, a pointing accuracy of better than {approx}0.15 {approx}0.15 pixel width is required to maintain half the advantage over random dithers.

Samsing, Johan; Kim, Alex G

2011-02-22T23:59:59.000Z

494

PowerPoint Posters 1 PowerPoint 2007 Creating Posters  

E-Print Network [OSTI]

PowerPoint Posters 1 PowerPoint 2007­ Creating Posters Description: This manual is designed to assist you in creating eye-catching, effective posters for presentation of research findings at scientific conferences and exhibits. You will learn the following elements of how to create a poster from

Collins, Gary S.

495

Cross-device gaze-supported point-to-point content transfer  

Science Journals Connector (OSTI)

Within a pervasive computing environment, we see content on shared displays that we wish to acquire and use in a specific way i.e., with an application on a personal device, transferring from point-to-point. The eyes as input can indicate intention to ... Keywords: content transfer, cross-device, eye-based interaction, gaze positioning, multimodal eye-tracking

Jayson Turner; Andreas Bulling; Jason Alexander; Hans Gellersen

2014-03-01T23:59:59.000Z

496

Updated On: 4/12/2013 15:34 Teams: Bung points Galactic Unicorns points  

E-Print Network [OSTI]

Matthew Sullivan 0 Joe Caggiano 12 Michael Biasella 5 Keith Klucznik 2 Benjamin Comeau 10 Ryan Kelley 23 Christopher Flood 12 #12;DaMonStahz points Tyler Mitchell points Craig Pille - C 9 Tyler Mitchell - C 24 Robert Jones 0 Christopher Tramontozzi 0 Kelsey Powers 0 Wellesley Broomfield 0 Ryan DeRosier 0 Brian

Sridhar, Srinivas

497

Point-to-Point Verification of Monitored Sensors at Reynolds Army Clinic and Hospital Final Report  

E-Print Network [OSTI]

A point-to-point verification of the heating, ventilating, and air conditioning (HVAC) system of the Reynolds Army Community Hospital (RACH) in Fort Sill, Oklahoma was done by the Energy Systems Laboratory (ESL) of Texas A&M University. Work began...

Martinez, J.; Linenschmidt, S.; Turner, D.

498

In Proceedings of the 8th IEEE International Conference on Tools with Artificial Intelligence, Toulouse, France, 1996. GATE: An Environment to Support Research and Development  

E-Print Network [OSTI]

describe a software environment to support research and development in natural language (NL) engineering, Toulouse, France, 1996. GATE: An Environment to Support Research and Development in Natural Language. This environment ­ GATE (General Architecture for Text Engineering) ­ aims to advance research in the area

Gaizauskas, Rob

499

In Proceedings of the 8th IEEE International Conference on Tools with Artificial Intelligence, Toulouse, France, 1996. GATE: An Environment to Support Research and Development  

E-Print Network [OSTI]

describe a software environment to support research and development in natural language (NL) engineering, Toulouse, France, 1996. GATE: An Environment to Support Research and Development in Natural Language. This environment -- GATE (General Architecture for Text Engineering) -- aims to advance research in the area

Gaizauskas, Rob

500

Apparatus for unloading pressurized fluid  

DOE Patents [OSTI]

An apparatus is described for unloading fluid, preferably pressurized gas, from containers in a controlled manner that protects the immediate area from exposure to the container contents. The device consists of an unloading housing, which is enclosed within at least one protective structure, for receiving the dispensed contents of the steel container, and a laser light source, located external to the protective structure, for opening the steel container instantaneously. The neck or stem of the fluid container is placed within the sealed interior environment of the unloading housing. The laser light passes through both the protective structure and the unloading housing to instantaneously pierce a small hole within the stem of the container. Both the protective structure and the unloading housing are specially designed to allow laser light passage without compromising the light's energy level. Also, the unloading housing allows controlled flow of the gas once it has been dispensed from the container. The external light source permits remote operation of the unloading device. 2 figures.

Rehberger, K.M.

1994-01-04T23:59:59.000Z